BLS Provider Exam Prep

Week 1 — Part I: Chain of Survival and High-Quality CPR

Difficulty: Heavy

What it covers: Part I builds the resuscitation foundation every other Part assumes. You will learn the unified 2025 Chain of Survival, the differences between the OHCA and IHCA chains, the role of the telecommunicator (T-CPR / dispatch-assisted CPR) and how to use a cell phone on speakerphone to stay at the patient's side, the precise adult compression rate and depth, full chest recoil, the chest compression fraction (CCF) target, the two-minute compressor switch rule, and how to recognize and avoid excessive ventilation that defeats every other thing you do well.

Print: 1 Mind Map, 3 Comparison Charts, 2 Cornell Notes pages

Study Tasks

☐ Read the Study Guide first — complete the High-Yield Objectives, Key Terms and Definitions, and Concept Overview sections before opening the chapter.

☐ Highlight as you read — follow the Made Easy Highlighting System

☐ Lock in the adult CPR numbers before anything else. Compression rate is 100–120 per minute. Compression depth is at least 2 inches (5 cm) and no more than 2.4 inches (6 cm) for an adult. CCF target is at least 60%, with 80% as the ideal. Compressor switch every 2 minutes to limit fatigue. These four numbers are the most directly tested digits in the entire book — get them red on the page and red in your memory.

☐ Build a clean side-by-side for OHCA versus IHCA. OHCA (out-of-hospital cardiac arrest) is driven by lay rescuers, bystanders, and EMS in the early links — recognition, calling 911, hands-on CPR, public AED retrieval, and EMS arrival define the timeline. IHCA (in-hospital cardiac arrest) shifts the early links onto staff, code teams, and continuous monitoring — the call goes to a code or rapid response team, not 911, and an AED or manual defibrillator is typically already in the room. Setting changes who responds and what resources are available, and the exam tests this distinction directly.

☐ Master the role of the telecommunicator. T-CPR (also called dispatch-assisted CPR) means the 911 telecommunicator recognizes likely arrest by phone and coaches the caller through compressions until EMS arrives. The corresponding rescuer behavior is to put the cell phone on speakerphone (or activate hands-free mode) so you can keep both hands on the patient's chest while staying on the line. Stepping away from the patient to make the call costs perfusion time the patient cannot afford.

☐ Anchor the no-excessive-ventilation rule. Excessive ventilation means breaths delivered too fast, with too much volume, or too forcefully. It raises intrathoracic pressure, reduces venous return, drops cardiac output during compressions, and increases the risk of gastric insufflation and aspiration. Each rescue breath should be delivered over about 1 second and produce just visible chest rise — no more.

☐ Complete the Practice Questions for Part I in your quiz bank. Review every rationale — correct and incorrect.

How to Use Your Templates

Mind Map: Central node = Chain of Survival and High-Quality CPR. Main branches: Unified 2025 Chain of Survival → OHCA Chain vs. IHCA Chain → Telecommunicator CPR (T-CPR) & Speakerphone Use → Compression Rate (100–120/min) → Compression Depth (≥ 2 in / 5 cm, ≤ 2.4 in / 6 cm) → Full Chest Recoil → Chest Compression Fraction (target ≥ 60%, ideal ≥ 80%) → Two-Minute Compressor Switch → Avoiding Excessive Ventilation → Agonal Breathing as a Sign to Start CPR.

Comparison Charts:

☐ Chart 1 — OHCA Chain vs. IHCA Chain: Setting, who responds first, how EMS is activated, when an AED arrives, who delivers definitive care, and the early-link priority that changes between the two.

☐ Chart 2 — Adult CPR Quality Metrics: Compression rate, compression depth, recoil, CCF target, switch interval — definition of each, target value, and the consequence of falling outside the target.

☐ Chart 3 — Effective Ventilation vs. Excessive Ventilation: Rate, volume, force, chest-rise appearance, intrathoracic-pressure effect, hemodynamic consequence, and the corrective action when excessive ventilation is recognized.

Cornell Notes:

☐ Page 1 — Cue questions: What are the links of the unified 2025 Chain of Survival, and how do the OHCA and IHCA chains differ at the early links? What is T-CPR and how should you use a cell phone during a real arrest so you do not leave the patient's side?

☐ Page 2 — Cue questions: What is the adult compression rate, depth, CCF target, and compressor switch interval, and what is the consequence of missing each? Why is excessive ventilation harmful during CPR, and what are the three ways a rescuer most commonly produces it?

Week 2 — Part II: Adult BLS Sequence

Difficulty: Heavy

What it covers: Part II turns the Chain of Survival into the actual hands-on adult sequence. You will learn the rapid responsiveness check using tap-and-shout, when to activate EMS without delaying compressions, the simultaneous breathing-and-pulse assessment in 10 seconds or less, real-time recognition of agonal gasping, correct hand placement and body mechanics for adult compressions, the 30:2 compression-to-ventilation cycle with smooth transitions and minimal interruptions, role assignment and rotation in two-rescuer adult BLS using closed-loop communication, the most common errors as they happen, and how to integrate AED arrival into an in-progress sequence with the shortest possible pre- and post-shock pauses.

Print: 1 Mind Map, 3 Comparison Charts, 2 Cornell Notes pages

Study Tasks

☐ Read the Study Guide first — complete the High-Yield Objectives, Key Terms and Definitions, and Concept Overview sections before opening the chapter.

☐ Highlight as you read — follow the Made Easy Highlighting System

☐ Lock in the simultaneous assessment rule before anything else in this Part. The healthcare provider technique is to evaluate breathing and pulse at the same time in no more than 10 seconds total. The adult pulse site is the carotid artery, palpated in the groove between the trachea and the sternocleidomastoid muscle on the side closest to the rescuer. Spending more than 10 seconds searching for a pulse is itself an error — if you are unsure, treat it as no pulse and start compressions.

☐ Master agonal gasping recognition. Agonal gasps are slow, irregular, often noisy gasps seen in early cardiac arrest. They are NOT effective breathing — they are a strong signal to begin CPR immediately. The exam will frame agonal gasping as an unresponsive patient who is "still breathing," and the wrong answer is to wait for normal respirations to stop. Treat agonal gasping as arrest.

☐ Build a clean reference for the responsiveness-check workflow. Tap-and-shout means firmly tapping both shoulders while loudly asking, "Are you okay?" — the goal is to elicit any response from a sleeping or briefly unconscious patient. If unresponsive, activate EMS (call 911 in OHCA or call the code/rapid response team in IHCA), then proceed to the simultaneous breathing-and-pulse check. EMS activation must happen without delaying the start of compressions when the patient is in arrest.

☐ Anchor adult hand placement and the 30:2 cycle. Heel of one hand on the lower half of the sternum, second hand on top, fingers interlaced, arms straight, shoulders directly over the hands so the force comes from your trunk, not your arms. Single-rescuer or two-rescuer adult CPR without an advanced airway uses 30:2 — thirty compressions, then two breaths, with smooth, minimal-pause transitions. Once an advanced airway is in place, compressions become continuous and ventilations are delivered asynchronously at one breath every 6 seconds.

☐ Practice integrating an arriving AED with minimal pause. The pre-shock pause is the time between the last compression and the shock; the post-shock pause is the time between the shock and the next compression. Both should be as short as possible — ideally less than 5 seconds each. The team behavior that protects both pauses is anticipating the AED's prompts, charging during compressions when possible, and resuming compressions immediately after every shock or "no shock advised" message.

☐ Complete the Practice Questions for Part II in your quiz bank. Review every rationale — correct and incorrect.

How to Use Your Templates

Mind Map: Central node = Adult BLS Sequence. Main branches: Scene Safety → Responsiveness Check (Tap-and-Shout) → EMS Activation (OHCA vs. IHCA) → Simultaneous Breathing & Pulse Check (≤ 10 sec) → Agonal Gasping Recognition → Adult Hand Placement & Body Mechanics → 30:2 Cycle → Two-Rescuer Coordination & Closed-Loop Communication → AED Integration → Pre-Shock & Post-Shock Pause Minimization → Common Errors and Real-Time Corrections.

Comparison Charts:

☐ Chart 1 — Responsive Adult vs. Unresponsive but Breathing vs. Unresponsive with Agonal Gasping vs. Unresponsive Apneic & Pulseless: Findings on tap-and-shout, breathing pattern, pulse status, immediate next action, and where the patient enters the BLS algorithm.

☐ Chart 2 — Single-Rescuer vs. Two-Rescuer Adult BLS: Compression-to-ventilation ratio, role assignment, switch logistics, AED handling, and how communication changes when the second rescuer arrives.

☐ Chart 3 — Common Adult BLS Errors and Their Real-Time Corrections: Shallow compressions, leaning on the chest, slow rate, fast rate, prolonged pulse check, excessive ventilation — the visual or audible cue that signals each error and the correction the team applies in the moment.

Cornell Notes:

☐ Page 1 — Cue questions: What is the simultaneous breathing-and-pulse assessment, and what is the maximum time you can spend on it before defaulting to "no pulse"? How do you distinguish agonal gasping from normal breathing, and what is the wrong answer the exam builds around this distinction?

☐ Page 2 — Cue questions: What is the correct adult hand placement, body posture, and depth/recoil cycle for compressions? How do you integrate an arriving AED into an in-progress sequence so the pre-shock and post-shock pauses are as short as possible?

Week 3 — Part III: AED Use

Difficulty: Moderate–Heavy

What it covers: Part III covers the device that turns a witnessed VF or pulseless VT arrest into a survivable event. You will learn shockable versus non-shockable rhythms, anterolateral versus anterior-posterior pad placement on adults, modifications around pacemakers, ICDs, and transdermal medication patches, AED use on wet, sweaty, or metal surfaces and when to move the patient, pediatric versus adult pad selection by age and weight, when and how to apply a pediatric attenuator (dose-reducing key or cable) and what fallback options exist, and the correct response to "shock advised" and "no shock advised" prompts so compressions resume immediately after every AED action.

Print: 1 Mind Map, 3 Comparison Charts, 2 Cornell Notes pages

Study Tasks

☐ Read the Study Guide first — complete the High-Yield Objectives, Key Terms and Definitions, and Concept Overview sections before opening the chapter.

☐ Highlight as you read — follow the Made Easy Highlighting System

☐ Lock in the shockable-versus-non-shockable rhythms cold. The AED will only shock ventricular fibrillation (VF) and pulseless ventricular tachycardia (pVT). Asystole and pulseless electrical activity (PEA) are non-shockable — the device will read the rhythm, advise no shock, and the team must continue CPR. The correct behavior on either prompt is the same: resume compressions immediately. The exam tests the urge to do something extra after a "no shock advised" message — there is nothing extra to do except continue high-quality CPR.

☐ Master adult pad placement. Anterolateral is the standard adult position: one pad on the upper right chest below the clavicle, the other pad on the left lateral chest below and lateral to the armpit. Anterior-posterior is the alternate position: one pad on the center of the chest and one on the back, preferred for small children, infants, and some implanted-device cases. Both configurations create a current path through the heart — the choice depends on the patient's size and what is on or under the chest skin.

☐ Build a clean reference for implanted devices and patches. A pacemaker is a visible bulge with a small surgical scar, usually under the left clavicle, that generates impulses to maintain heart rate. An ICD looks similar and treats lethal arrhythmias internally. The pad-placement rule for both is the same: place the pad at least 1 inch (2.5 cm) away from the device, or use the anterior-posterior configuration if the device is in the way. A transdermal medication patch (nitroglycerin, fentanyl, hormone, nicotine) must be removed and the skin wiped before pad placement — pads on top of a patch can produce burns and absorb the shock.

☐ Anchor the surface and environment rules. On a wet patient, dry the chest where the pads will go before placement — water creates a current path across the chest skin that bypasses the heart. On a metal surface, the rule is more permissive than commonly remembered: AED operation on a metal stretcher or floor is generally safe as long as no one is in contact with the patient at the moment of shock, but the standard teaching is to move the patient if practical. Pacemaker-affected and ICD-affected surfaces follow the device rules above.

☐ Lock in pediatric pad selection and the attenuator. Pediatric pads are smaller, lower-energy AED pads designed for children under 8 years or under 25 kg / 55 lb. A pediatric attenuator is a dose-reducing key or cable used on a standard AED with adult pads to deliver a child-appropriate energy dose. If pediatric pads or an attenuator are not available, the fallback is to use adult pads on a child — making sure the pads do not touch each other; on a small child this typically means anterior-posterior placement. An adult AED with adult pads is preferred over no AED in a child.

☐ Complete the Practice Questions for Part III in your quiz bank. Review every rationale — correct and incorrect.

How to Use Your Templates

Mind Map: Central node = AED Use. Main branches: Shockable Rhythms (VF, pVT) vs. Non-Shockable Rhythms (Asystole, PEA) → Anterolateral Placement → Anterior-Posterior Placement → Pacemaker & ICD Modifications → Transdermal Patch Removal → Wet, Sweaty, or Metal Surfaces → Pediatric Pads (< 8 years or < 25 kg / 55 lb) → Pediatric Attenuator → Fallback to Adult Pads on a Child → Shock-Advised Response → No-Shock-Advised Response → Resume Compressions Immediately.

Comparison Charts:

☐ Chart 1 — Shockable vs. Non-Shockable Rhythms: Rhythm names, AED behavior (shock vs. no shock), team response on each prompt, and the underlying reason CPR continues regardless of the prompt.

☐ Chart 2 — Anterolateral vs. Anterior-Posterior Pad Placement: Pad locations, current path, typical patient (adult vs. small child or implanted device), and the situations that flip the default choice.

☐ Chart 3 — Adult AED vs. Pediatric Pads vs. Pediatric Attenuator vs. Fallback Adult Pads on a Child: Patient size and age, energy dose delivered, equipment required, when each is the correct choice, and the rule for small children whose pads would touch.

Cornell Notes:

☐ Page 1 — Cue questions: What are the only two rhythms an AED will shock, and what is the correct response on a "no shock advised" prompt? Where do anterolateral pads go on an adult chest, and what conditions drive a switch to anterior-posterior placement?

☐ Page 2 — Cue questions: What is the pad-placement modification for a patient with a pacemaker, an ICD, or a transdermal medication patch? At what age and weight do you switch from adult to pediatric pads, and what is the fallback when pediatric pads and an attenuator are both unavailable?

Week 4 — Part IV: Pediatric and Infant BLS

Difficulty: Heavy

What it covers: Part IV is the most distinction-heavy Part in the book — the BLS algorithm changes by patient age in ways the exam tests directly and repeatedly. You will master BLS age definitions (newborn, infant, child, adult), 30:2 versus 15:2 compression-to-ventilation ratios driven by patient age and the number of rescuers, child compressions using one- or two-handed technique to the correct depth and rate, two-finger versus two-thumb encircling-hands infant technique driven by the number of rescuers, the brachial pulse on an infant within 10 seconds, AED adaptations for children and infants, and the "call first" versus "CPR first" decision for an unwitnessed pediatric arrest.

Print: 1 Mind Map, 4 Comparison Charts, 3 Cornell Notes pages

Study Tasks

☐ Read the Study Guide first — complete the High-Yield Objectives, Key Terms and Definitions, and Concept Overview sections before opening the chapter.

☐ Highlight as you read — follow the Made Easy Highlighting System

☐ Lock in the BLS age definitions before anything else in this Part. Newborn is an infant from birth through the first hours of life — covered by the Neonatal Resuscitation Program (NRP), not standard BLS. Infant (BLS) is a patient under 1 year of age, excluding newborns. Child (BLS) is a patient from 1 year of age to the onset of puberty (signs of puberty are breast development in females and axillary hair in males). Adult (BLS) is a patient who has reached puberty or beyond. Mismatching the age category to the algorithm is the most directly tested trap in this Part.

☐ Master the 30:2 versus 15:2 ratio rule cold. 30:2 is used by single rescuers at any age and by two rescuers in adult CPR. 15:2 is used by two rescuers performing CPR on a child or infant. The pediatric switch from 30:2 to 15:2 happens only when a second rescuer is present — a single lay rescuer or single healthcare provider performing pediatric CPR alone uses 30:2.

☐ Build a clean reference for compression technique by patient size. Adult: two-hand technique on the lower half of the sternum, depth at least 2 inches (5 cm) and no more than 2.4 inches (6 cm). Child: one- or two-handed technique on the lower half of the sternum, depth at least one-third the AP diameter of the chest (about 2 inches / 5 cm). Infant single-rescuer: two-finger technique with two fingers on the sternum just below the nipple line. Infant two-rescuer: two-thumb encircling-hands technique with both thumbs side by side on the sternum and the hands encircling the chest. Infant depth is at least one-third the AP diameter of the chest (about 1.5 inches / 4 cm).

☐ Anchor the brachial pulse on an infant. The brachial pulse is the standard pulse-check site in infants — palpated on the medial upper arm between the shoulder and elbow. The carotid is harder to find on a short, fat infant neck, and the femoral is acceptable but less practical. Limit the pulse check to no more than 10 seconds; if you are unsure, treat it as no pulse and start compressions.

☐ Master the "call first" versus "CPR first" rule. For witnessed pediatric arrest, "call first" — activate EMS immediately, then return to the patient — because a witnessed arrest in a child is more likely to be a primary cardiac event that benefits from rapid defibrillation. For unwitnessed pediatric arrest, "CPR first" — perform 2 minutes of CPR before leaving to call — because most unwitnessed pediatric arrests are hypoxic in origin and the child needs oxygenation right now more than they need EMS in 6 minutes. If a cell phone is available, call on speakerphone and stay at the patient's side either way.

☐ Complete the Practice Questions for Part IV in your quiz bank. Review every rationale — correct and incorrect.

How to Use Your Templates

Mind Map: Central node = Pediatric and Infant BLS. Main branches: BLS Age Definitions (newborn, infant, child, adult) → 30:2 vs. 15:2 Ratio Rule → Child Compression Technique (one- or two-handed) → Infant Two-Finger Technique → Infant Two-Thumb Encircling-Hands Technique → Infant Depth (~1.5 in / 4 cm) and Child Depth (~2 in / 5 cm) → Brachial Pulse Site → Pediatric AED Adaptations → "Call First" vs. "CPR First" Decision.

Comparison Charts:

☐ Chart 1 — Newborn vs. Infant vs. Child vs. Adult (BLS Definitions): Age range, clinical landmarks (puberty signs for the adult boundary), governing protocol (NRP vs. BLS), compression technique, compression depth, pulse-check site, and ventilation rate when applicable.

☐ Chart 2 — 30:2 Ratio vs. 15:2 Ratio: When each is used (single rescuer vs. two rescuers, adult vs. pediatric), why two-rescuer pediatric CPR uses a higher ventilation share, and the mistake the exam most often builds around this distinction.

☐ Chart 3 — Two-Finger Technique vs. Two-Thumb Encircling-Hands Technique: Number of rescuers, hand position, depth achievable, perfusion quality during compressions, and the situation that flips the technique.

☐ Chart 4 — "Call First" vs. "CPR First" Pediatric Arrest: Witnessed vs. unwitnessed, presumed mechanism (cardiac vs. hypoxic), what the rescuer does first, role of speakerphone, and how a second rescuer changes the sequence.

Cornell Notes:

☐ Page 1 — Cue questions: What are the four BLS age categories, and what clinical landmark distinguishes a child from an adult? What is the pulse-check site for an infant, and why is it preferred over the carotid?

☐ Page 2 — Cue questions: When do you use 30:2 versus 15:2, and what is the most common exam trap built around this rule? What is the difference between two-finger and two-thumb encircling-hands infant compressions, and what determines which one you use?

☐ Page 3 — Cue questions: How does compression depth differ between an infant, a child, and an adult, and how is each measured? What is the rationale for "call first" in witnessed pediatric arrest versus "CPR first" in unwitnessed pediatric arrest?

Week 5 — Part V: Airway, Ventilation, and Rescue Breathing

Difficulty: Moderate–Heavy

What it covers: Part V is where airway technique, mask seal, and ventilation rate all come together. You will learn head-tilt/chin-lift versus jaw-thrust based on suspected cervical-spine injury, correct pocket-mask use with proper seal, position, and ventilation volume, the decision between one-rescuer and two-rescuer bag-mask ventilation, the rescue breathing rate for an apneic adult with a pulse versus an apneic child or infant with a pulse, the ventilation-rate adjustment when an advanced airway is in place, and real-time recognition and correction of gastric insufflation.

Print: 1 Mind Map, 3 Comparison Charts, 2 Cornell Notes pages

Study Tasks

☐ Read the Study Guide first — complete the High-Yield Objectives, Key Terms and Definitions, and Concept Overview sections before opening the chapter.

☐ Highlight as you read — follow the Made Easy Highlighting System

☐ Lock in the head-tilt/chin-lift versus jaw-thrust decision before anything else. Head-tilt/chin-lift is the standard airway-opening maneuver — tilt the forehead back with one hand while lifting the bony chin with the fingers of the other; used when no spinal injury is suspected. Jaw-thrust is the cervical-spine-protective maneuver — displace the mandible forward at the angles of the jaw without tilting the head; used when trauma is suspected. The decision is binary and trauma-driven, and the exam will test it with a scenario where mechanism alone (fall, MVC, diving accident) determines the answer.

☐ Master the rescue breathing rates cold. Adult with a pulse but inadequate breathing: 1 breath every 6 seconds (10 breaths/min). Child or infant with a pulse but inadequate breathing: 1 breath every 2–3 seconds (20–30 breaths/min). With an advanced airway in place during CPR (any age): 1 breath every 6 seconds with continuous compressions. These three rates are the most directly tested numbers in this Part.

☐ Build a clean reference for the pocket mask and the E-C clamp. The pocket mask is a clear, transparent face mask with a one-way valve used for mouth-to-mask ventilation while protecting the rescuer. The mask seal is the airtight contact between the mask and the patient's face that prevents air leak. The one-rescuer bag-mask hand position is the E-C clamp — thumb and index finger form a "C" pressing the mask down while the remaining three fingers form an "E" lifting the jaw. Two-rescuer bag-mask is preferred whenever staffing allows because one rescuer can dedicate both hands to the seal while the other squeezes the bag.

☐ Anchor gastric insufflation recognition. Gastric insufflation is air entering the stomach instead of the lungs — caused by ventilations delivered too fast, with too much volume, or against an incompletely opened airway. You see it as visible abdominal distension during ventilation. The corrective actions are to slow the ventilation rate, deliver each breath over about 1 second to just visible chest rise, reposition the airway (head-tilt/chin-lift adjustment or improved jaw-thrust), and check the mask seal. The exam tests gastric insufflation as both a sign and a technique-error pattern that you must correct in real time.

☐ Practice the volume rule across all three ventilation methods. Each rescue breath should be delivered over about 1 second and should produce just visible chest rise — no more. Bigger breaths do not deliver more oxygen; they deliver more gastric insufflation, more intrathoracic pressure, and worse hemodynamics during CPR. The standard is the same whether you are using mouth-to-mask, one-rescuer bag-mask, or two-rescuer bag-mask.

☐ Complete the Practice Questions for Part V in your quiz bank. Review every rationale — correct and incorrect.

How to Use Your Templates

Mind Map: Central node = Airway, Ventilation, and Rescue Breathing. Main branches: Head-Tilt/Chin-Lift → Jaw-Thrust (Trauma) → Pocket Mask & Mask Seal → One-Rescuer Bag-Mask & E-C Clamp → Two-Rescuer Bag-Mask → Adult Rescue Breathing Rate (1 breath every 6 sec) → Child/Infant Rescue Breathing Rate (1 breath every 2–3 sec) → Advanced Airway Rate (1 breath every 6 sec, continuous compressions) → Gastric Insufflation Recognition & Correction.

Comparison Charts:

☐ Chart 1 — Head-Tilt/Chin-Lift vs. Jaw-Thrust: Indication, hand and head position, cervical-spine impact, scenarios that mandate each, and the corrective action when the chosen maneuver fails to open the airway.

☐ Chart 2 — Pocket Mask vs. One-Rescuer Bag-Mask vs. Two-Rescuer Bag-Mask: Equipment, hand positioning, achievable seal quality, ventilation effectiveness, and the team configuration that drives each choice.

☐ Chart 3 — Rescue Breathing Rates: Adult with a pulse, child/infant with a pulse, and any age with an advanced airway during CPR — the rate, the breath-delivery time, the chest-rise target, and the most common error for each.

Cornell Notes:

☐ Page 1 — Cue questions: When do you use head-tilt/chin-lift versus jaw-thrust, and what scenarios force the trauma maneuver? How do you form the E-C clamp for one-rescuer bag-mask, and why is two-rescuer bag-mask the preferred configuration when staffing allows?

☐ Page 2 — Cue questions: What are the three rescue breathing rates — adult with a pulse, child/infant with a pulse, and any age with an advanced airway — and how is each delivered to just visible chest rise? What causes gastric insufflation, how do you recognize it in real time, and what are the four corrective actions?

Week 6 — Part VI: Foreign-Body Airway Obstruction

Difficulty: Moderate

What it covers: Part VI covers choking — recognition, intervention, and the clean transition to CPR when the patient becomes unresponsive. You will learn to distinguish mild from severe foreign-body airway obstruction (FBAO) and choose the correct intervention for each, perform abdominal thrusts (Heimlich maneuver) on a responsive adult or child with severe obstruction, substitute chest thrusts for abdominal thrusts in late pregnancy or obese patients, perform the alternating 5 back slaps and 5 chest thrusts sequence on a choking infant, transition cleanly from responsive choking management to CPR when the patient becomes unresponsive, and apply the "look-for-the-object" rule during CPR — removing only visible objects and avoiding blind finger sweeps.

Print: 1 Mind Map, 3 Comparison Charts, 2 Cornell Notes pages

Study Tasks

☐ Read the Study Guide first — complete the High-Yield Objectives, Key Terms and Definitions, and Concept Overview sections before opening the chapter.

☐ Highlight as you read — follow the Made Easy Highlighting System

☐ Lock in the mild-versus-severe FBAO distinction before anything else in this Part. Mild obstruction is a partial obstruction in which the patient can cough forcefully, speak, and move air — management is encouragement and observation, NOT thrusts. Severe obstruction is a near-complete or complete obstruction in which the patient cannot cough effectively, speak, or breathe — immediate thrusts are indicated. The universal sign of choking — the patient's hands clutched to the throat — is a recognized nonverbal indicator of severe FBAO and should be treated as a request for help.

☐ Master abdominal thrusts and the substitutions. Abdominal thrusts (Heimlich maneuver) are inward and upward thrusts delivered to the abdomen above the umbilicus and below the xiphoid in responsive adults and children with severe obstruction. Chest thrusts are delivered at the lower half of the sternum and are used in place of abdominal thrusts when pregnancy or large body habitus prevents an effective Heimlich. Continue thrusts until the object is expelled or the patient becomes unresponsive.

☐ Build a clean reference for the choking infant sequence. Infants get an alternating sequence of 5 back slaps and 5 chest thrusts — never abdominal thrusts. Five firm slaps with the heel of the hand between the infant's shoulder blades, with the infant held face-down with the head lower than the trunk, then five chest thrusts with the infant turned face-up, also with the head lower than the trunk. Continue alternating until the object is expelled or the infant becomes unresponsive. The reason abdominal thrusts are excluded in infants is the risk of intra-abdominal organ injury.

☐ Anchor the unresponsive transition. When a choking patient becomes unresponsive, lower them carefully to the ground and begin CPR — starting with chest compressions. Each time you open the airway to give breaths, look in the mouth for the object. If you can see the object, remove it. If you cannot see it, do not perform a blind finger sweep — sweeping blindly can push the object deeper. This "look-for-the-object" rule is the safe, exam-tested behavior, and it replaces older blind-sweep teaching that is no longer recommended.

☐ Complete the Practice Questions for Part VI in your quiz bank. Review every rationale — correct and incorrect.

How to Use Your Templates

Mind Map: Central node = Foreign-Body Airway Obstruction. Main branches: Mild Obstruction (Encourage & Observe) vs. Severe Obstruction (Thrusts) → Universal Sign of Choking → Abdominal Thrusts (Heimlich) for Adults & Children → Chest Thrusts in Pregnancy or Large Habitus → Infant Sequence (5 Back Slaps + 5 Chest Thrusts) → Transition to CPR When Unresponsive → "Look-for-the-Object" Rule (No Blind Finger Sweeps).

Comparison Charts:

☐ Chart 1 — Mild Obstruction vs. Severe Obstruction: Patient appearance (cough, voice, air movement), the universal sign of choking, immediate management (encourage vs. thrusts), and the moment to escalate.

☐ Chart 2 — Adult/Child Choking vs. Pregnancy or Large Habitus vs. Infant Choking: Thrust type and location, hand position, patient position, when to switch techniques, and the contraindicated alternative for each population.

☐ Chart 3 — Responsive Choking Management vs. Unresponsive Transition to CPR: Hands-on technique, when to lower the patient to the ground, what to do at every airway-opening between compression cycles, and the "look-for-the-object" rule that replaces blind finger sweeps.

Cornell Notes:

☐ Page 1 — Cue questions: How do you distinguish mild from severe FBAO, and what is the management for each? When do you substitute chest thrusts for abdominal thrusts in a responsive choking patient, and why?

☐ Page 2 — Cue questions: What is the alternating sequence of back slaps and chest thrusts on a choking infant, and why are abdominal thrusts excluded in infants? What is the "look-for-the-object" rule during CPR on an unresponsive choking patient, and why is a blind finger sweep no longer recommended?

Week 7 — Part VII: Special Situations and Opioid Emergencies

Difficulty: Heavy — High Yield

What it covers: Part VII is the most clinically applied Part of the book and the one where the standard rules bend. You will learn how to modify standard BLS for cardiac arrest in pregnancy — including hand position and team organization — perform left lateral uterine displacement (LLUD) and explain why it improves maternal hemodynamics, recognize the 4-minute window for perimortem cesarean delivery (PMCD, also called resuscitative hysterotomy) and the team-readiness implications, execute the opioid-associated emergency response sequence and recognize the signs of opioid overdose, administer intranasal or intramuscular naloxone correctly and follow up after dosing, modify resuscitation for severe hypothermia using the prolonged-effort principle, and adapt BLS for drowning-related arrest by prioritizing oxygenation and rescue breaths.

Print: 1 Mind Map, 4 Comparison Charts, 3 Cornell Notes pages

Study Tasks

☐ Read the Study Guide first — complete the High-Yield Objectives, Key Terms and Definitions, and Concept Overview sections before opening the chapter.

☐ Highlight as you read — follow the Made Easy Highlighting System

☐ Lock in cardiac arrest in pregnancy and LLUD before anything else in this Part. A cardiac arrest in pregnancy is functionally defined as one in a patient with a gravid uterus large enough to impair venous return — generally about 20 weeks' gestation or fundus at or above the umbilicus. Aortocaval compression occurs when the gravid uterus compresses the inferior vena cava (and aorta) in the supine patient, reducing venous return and cardiac output. Left lateral uterine displacement is the corrective maneuver: manually push the uterus to the patient's left to relieve the compression while continuous CPR is performed in the supine position. Tilting the entire patient is no longer recommended because it degrades compression quality.

☐ Master the perimortem cesarean delivery (PMCD) timeline. PMCD — increasingly called resuscitative hysterotomy to emphasize that the procedure is part of maternal resuscitation, not just fetal salvage — should be initiated by 4 minutes of arrest if ROSC has not been achieved, with delivery within 5 minutes. The 4-minute window exists because brain injury from ongoing maternal hypoperfusion accumulates rapidly and because evacuating the uterus restores venous return and dramatically improves the chance of maternal ROSC. The team-readiness implication is that the OB and surgical teams must be activated the instant arrest is recognized, not when the 4-minute mark is hit.

☐ Build a clean reference for the opioid-associated emergency response. Recognize the signs: depressed level of consciousness, respiratory depression or apnea, often with miosis (pinpoint pupils). Naloxone is a short-acting opioid antagonist that reverses respiratory and CNS depression — available intranasal (IN) and intramuscular (IM) for laypersons. Re-narcotization is the return of opioid effects after naloxone wears off, particularly with long-acting opioids — this is why every reversed patient must be monitored after dosing and may need a second dose. If the patient is in cardiac arrest, standard CPR plus naloxone is the response — naloxone does not replace compressions and ventilations.

☐ Anchor severe hypothermia and the "not dead until warm and dead" principle. Severe hypothermia is core body temperature below 30°C / 86°F — associated with bradycardia, slow respirations, and a brain that is unusually tolerant of low blood flow. The teaching principle is that prolonged resuscitation is warranted because cold provides cerebral protection and survival is possible after long arrests. The clinical implication: extend resuscitation efforts well beyond what would be appropriate in normothermic arrest, and warm the patient as you resuscitate.

☐ Master the drowning-arrest modification. Drowning is the process of experiencing respiratory impairment from submersion in liquid; the resulting submersion arrest is primarily hypoxic in mechanism. The drowning-specific BLS modification is "rescue breaths first" — when feasible, deliver 2–5 initial rescue breaths to address hypoxia before starting standard 30:2 cycles. Hands-only CPR is NOT preferred in drowning arrest because the patient's primary deficit is oxygen, not perfusion alone. The same logic excludes hands-only CPR in opioid arrest and pediatric arrest.

☐ Complete the Practice Questions for Part VII in your quiz bank. Review every rationale — correct and incorrect.

How to Use Your Templates

Mind Map: Central node = Special Situations and Opioid Emergencies. Main branches: Cardiac Arrest in Pregnancy → Aortocaval Compression → Left Lateral Uterine Displacement (LLUD) → Perimortem Cesarean Delivery / Resuscitative Hysterotomy (4-min window) → Opioid Emergency Recognition (LOC, respirations, pupils) → Naloxone (IN, IM) → Re-Narcotization Monitoring → Severe Hypothermia (< 30°C / 86°F) → "Not Dead Until Warm and Dead" → Drowning Arrest → Rescue Breaths First (2–5 initial breaths) → Hands-Only CPR Exclusions → Recovery Position (Special Situations).

Comparison Charts:

☐ Chart 1 — Standard Adult Arrest vs. Pregnancy Arrest: Patient position, hand position for compressions, additional maneuvers (LLUD), team activations (OB, surgery), the 4-minute PMCD window, and the rationale for evacuating the uterus.

☐ Chart 2 — Mild Opioid Toxicity vs. Severe Opioid Emergency vs. Opioid-Associated Cardiac Arrest: Level of consciousness, breathing pattern, pupil findings, naloxone role, CPR role, and the post-reversal monitoring required for re-narcotization.

☐ Chart 3 — Normothermic Arrest vs. Severe Hypothermic Arrest: Expected resuscitation duration, rationale for prolonged effort, rewarming priority, and the teaching principle that drives the difference.

☐ Chart 4 — Standard Arrest vs. Drowning-Related Arrest: Primary mechanism (cardiac vs. hypoxic), initial rescue breaths (none vs. 2–5), appropriateness of hands-only CPR, and the populations where hands-only CPR is excluded.

Cornell Notes:

☐ Page 1 — Cue questions: At what gestational threshold does cardiac arrest in pregnancy require BLS modification, and what is the maneuver — and rationale — that replaces full-body tilt? What is the 4-minute window for perimortem cesarean delivery, and what does team readiness look like the moment arrest is recognized?

☐ Page 2 — Cue questions: What are the three classic signs of opioid overdose, and what are the IN and IM routes of naloxone administration available to laypersons? What is re-narcotization, and what is the monitoring obligation after every naloxone reversal?

☐ Page 3 — Cue questions: What core temperature defines severe hypothermia, and 

what is the "not dead until warm and dead" principle in practical terms? What is the drowning-specific BLS modification regarding initial rescue breaths, and why is hands-only CPR not the preferred approach in drowning, opioid, or pediatric arrest?

Week 8 — Part VIII: Team Dynamics and Termination

Difficulty: Moderate

What it covers: Part VIII closes the procedural arc by tying every prior Part together inside the team that delivers it. You will learn closed-loop communication for giving and receiving orders during a resuscitation, role assignment and rotation in a high-performance team, constructive intervention when you observe an unsafe action or deviation from protocol, the BLS Universal Termination of Resuscitation (TOR) rule and the rationale for each criterion, when to place a patient in the recovery position and when not to, and how to deliver a structured ALS handoff using SBAR or an equivalent framework.

Print: 1 Mind Map, 2 Comparison Charts, 1 Cornell Notes page

Study Tasks

☐ Read the Study Guide first — complete the High-Yield Objectives, Key Terms and Definitions, and Concept Overview sections before opening the chapter.

☐ Highlight as you read — follow the Made Easy Highlighting System

☐ Lock in closed-loop communication before anything else in this Part. Closed-loop communication is a three-step cycle in which an order is given to a named person, repeated back, and confirmed when completed. "Maria, give the next round of compressions." → "Giving the next round of compressions." → "Compressions complete." Naming the person, repeating the order, and confirming completion is the entire pattern, and it is the single most-tested team-dynamics behavior on the BLS exam.

☐ Master the BLS Universal Termination of Resuscitation (TOR) rule. The three-criterion rule for adult OHCA states that termination may be considered when ALL three are met: (1) arrest NOT witnessed by EMS, (2) NO shocks delivered, and (3) NO return of spontaneous circulation. If any one of the three is not met — for example, EMS witnessed the arrest, even one shock was delivered, or there was a brief ROSC — termination is not indicated. The rule applies to OHCA only; IHCA termination follows different decision frameworks led by the code team. The exam tests this rule by varying which criterion is met or unmet.

☐ Build a clean reference for constructive intervention. Constructive intervention is the professional duty to speak up when an unsafe action, error, or protocol deviation is observed — done in a respectful and clear manner that prioritizes patient safety. The pattern is observation, then concrete request: "I see compressions are slowing — let's switch the compressor now." Constructive intervention is a duty, not a courtesy, and the team leader's job is to receive it without defensiveness.

☐ Anchor the recovery position rules. The recovery position is a side-lying position used for an unresponsive patient who IS breathing normally — to maintain a patent airway and allow secretions to drain. It is NOT used in arrest, suspected trauma, or pregnancy past 20 weeks (use left-lateral tilt instead in that case). When trauma is suspected, maintain spinal precautions with manual stabilization or a jaw-thrust airway and avoid the recovery position. Recognizing when NOT to use the recovery position is as testable as knowing when to use it.

☐ Master the SBAR handoff. SBAR is a standardized handoff tool — Situation, Background, Assessment, Recommendation — that organizes information for the receiver. A clean ALS handoff names the patient, summarizes the arrest event and the BLS course (witnessed/unwitnessed, time down, shocks delivered, drugs given by EMS, ROSC status), states the current clinical picture, and recommends next steps. The receiver should leave the handoff knowing what happened, what was done, and what is most important to do next.

☐ Complete the Practice Questions for Part VIII in your quiz bank. Review every rationale — correct and incorrect.

How to Use Your Templates

Mind Map: Central node = Team Dynamics and Termination. Main branches: High-Performance Team → Team Leader & Role Clarity → Closed-Loop Communication (Order → Repeat → Confirm) → Constructive Intervention → Knowing Your Limits → BLS Universal TOR Rule (Not Witnessed by EMS, No Shocks, No ROSC) → Recovery Position (When and When Not) → Spinal Precautions in Trauma → SBAR Handoff to ALS → Post-Event Debrief.

Comparison Charts:

☐ Chart 1 — Closed-Loop vs. Open-Loop Communication: Number of confirmation steps, who is named in the order, what counts as completion, the failure mode when the loop is left open, and the corrective phrasing the team leader uses to close it.

☐ Chart 2 — Recovery Position Indicated vs. Recovery Position Contraindicated: Patient findings (breathing, responsiveness, suspected trauma, pregnancy past 20 weeks), the goal of the position when used, the alternative when contraindicated, and the documentation required either way.

Cornell Notes:

☐ Page 1 — Cue questions: What are the three steps of closed-loop communication, and what is the most common failure mode the team leader must close in real time? What are the three criteria of the BLS Universal TOR rule for adult OHCA, and what happens if even one criterion is not met? When is the recovery position indicated, and what three situations contraindicate it? What are the four elements of an SBAR handoff to ALS?

Week 9 — Full Review & Exam Simulation

Your final week is not about learning new material — it is about consolidating everything you have built and proving it under exam conditions.

Review Tasks

☐ Re-draw one Mind Map from memory for each Part you feel least confident about. Check it against your original.

☐ Work through your Cornell Notes cue columns for every Part — cover the right-hand notes and answer from memory.

☐ Re-do any quiz bank questions you got wrong across all Parts. Focus on the rationales.

☐ Review the Common Mistakes, Rapid Review, and Self-Assessment Checklist sections for your two or three weakest Parts.

Exam Simulation

☐ Take the full-length BLS practice exam using the QR code in the back matter of this book. Complete it in one sitting, timed, as close to real exam conditions as possible.

☐ Review your emailed score report. Identify which Parts you missed most and spend your remaining time on those Parts' Rapid Review and clinical scenarios only.