BLS INSTRUCTOR EXAM – AMERICAN HEART ASSOCIATION (AHA) BASIC LIFE SUPPORT INSTRUCTOR ASSESSMENT COMPLETE QUESTIONS WITH 100% VERIFIED ANSWERS

BLS INSTRUCTOR EXAM – AMERICAN HEART ASSOCIATION (AHA) BASIC LIFE SUPPORT INSTRUCTOR ASSESSMENT COMPLETE QUESTIONS WITH 100% VERIFIED ANSWERS 1. What is the recommended compression-to-ventilation ratio for a single rescuer performing CPR on an adult without an advanced airway? A. 15:1 B. 30:2 C. 15:2 D. 10:1 Correct Answer: B Rationale: The AHA guidelines specify a 30:2 ratio for single-rescuer adult CPR to optimize the balance between chest compressions and ventilations. ________________________________________ 2. For a child in cardiac arrest with two rescuers and no advanced airway, what compression-to-ventilation ratio should be used? A. 30:2 B. 15:1 C. 15:2 D. 5:1 Correct Answer: C Rationale: For two-rescuer pediatric CPR without an advanced airway, the ratio is 15:2 to provide more ventilations, which are often critical in pediatric arrests. ________________________________________ 3. During CPR on an infant, which technique is recommended for a lone rescuer? A. Two-thumb encircling hands technique B. Heel of one hand C. Two-finger technique D. Fist to the chest Correct Answer: C Rationale: The two-finger technique is recommended for a lone rescuer performing infant CPR to allow for effective compressions while also enabling ventilations. ________________________________________ 4. What is the maximum time allowed for a pulse check in an adult victim? A. 5 seconds B. 15 seconds C. 20 seconds D. No more than 10 seconds Correct Answer: D Rationale: A pulse check should take no more than 10 seconds to avoid delaying chest compressions and defibrillation. ________________________________________ 5. Which adult chest compression depth meets AHA guidelines for high-quality CPR? A. At least 1.5 inches B. At least 2 inches while avoiding excessive depth C. Exactly 3 inches D. At least 3.5 inches Correct Answer: B Rationale: The AHA requires adult compressions to be at least 2 inches deep, but rescuers should avoid excessive depth (greater than 2.4 inches) to prevent injury. ________________________________________ 6. What is the recommended compression rate for adult CPR? A. 80 to 100/min B. 100 to 120/min C. 120 to 140/min D. 60 to 80/min Correct Answer: B Rationale: High-quality CPR requires a compression rate of 100 to 120/min to maintain adequate perfusion while allowing for full chest recoil. ________________________________________ 7. When the AED arrives for an unresponsive adult with no pulse, what is the first action? A. Perform 2 minutes of CPR before using the AED B. Turn on the AED and follow the prompts C. Deliver a shock immediately without analysis D. Check for breathing again Correct Answer: B Rationale: The first step is to power on the AED and follow its voice and visual prompts, minimizing interruptions in CPR. ________________________________________ 8. For an adult choking victim who becomes unresponsive, what is the next step? A. Perform abdominal thrusts B. Begin CPR starting with chest compressions C. Give 5 back blows D. Perform a finger sweep Correct Answer: B Rationale: If a choking victim becomes unresponsive, the rescuer should lower the person to the ground and begin CPR, starting with chest compressions. ________________________________________ 9. What is the recommended depth for chest compressions in a child? A. At least 1 inch B. At least 2 inches C. At least one-third the anterior-posterior diameter, about 2 inches D. At least one-half the anterior-posterior diameter Correct Answer: C Rationale: Child compressions should be at least one-third the depth of the chest, which is about 2 inches (5 cm). ________________________________________ 10. For an infant with a witnessed sudden collapse, what should the rescuer do first? A. Start CPR with 2 rescue breaths B. Check for a pulse for 10 seconds C. Activate the emergency response system D. Start chest compressions immediately Correct Answer: A Rationale: For a witnessed sudden collapse in an infant, the rescuer should start CPR with 2 rescue breaths before activating EMS, as respiratory causes are common. ________________________________________ 11. In two-rescuer infant CPR, what compression technique is preferred? A. Two-finger technique B. Two-thumb encircling hands technique C. Heel of one hand D. One-handed technique Correct Answer: B Rationale: The two-thumb encircling hands technique is preferred for two-rescuer infant CPR because it generates higher blood pressures and is less tiring. ________________________________________ 12. How often should rescuers switch compressors during CPR to avoid fatigue? A. Every 1 minute