BASIC LIFE SUPPORT (BLS) CERTIFICATION COMPREHENSIVE
EXAM PRACTICE QUESTIONS AND ANSWERS: THE MOST
RECENT AND COMPREHENSIVE VERSION WITH VERIFIED
ANSWERS; GUARANTEED PASS WITH INSTANT PDF
DOWNLOAD.
Exam Overview:
This 150-question comprehensive BLS Certification examination assesses foundational
knowledge, applied clinical skills, decision-making, professional standards, legal considerations,
team dynamics, infection control, airway management, AED use, adult/child/infant resuscitation,
choking management, special resuscitation circumstances, and real-world emergency scenarios
consistent with current guidelines from the American Heart Association and international BLS
standards.
1. A 55-year-old man collapses in a shopping mall. You ensure the scene is
safe. What is your next action?
A. Start chest compressions
B. Provide two rescue breaths
C. Check responsiveness and breathing simultaneously
D. Apply AED immediately
Rationale: After confirming scene safety, the rescuer checks responsiveness
and breathing (no more than 10 seconds) before activating emergency
response and beginning CPR.
2. During adult CPR, the correct compression rate is:
A. 80–100/min
B. 90–110/min
C. 100–120/min
D. 120–140/min
Rationale: High-quality CPR requires a compression rate of 100–120 per
minute.
,3. The recommended compression depth for an adult is:
A. 1 inch (2.5 cm)
B. 1.5 inches (4 cm)
C. At least 2 inches (5 cm) but not more than 2.4 inches (6 cm)
D. 3 inches (7.5 cm)
Rationale: Adequate depth improves perfusion; excessive depth may cause
injury.
4. The compression-to-ventilation ratio for a single rescuer adult CPR is:
A. 15:2
B. 30:1
C. 30:2
D. 15:1
Rationale: Standard adult single-rescuer ratio is 30 compressions to 2
breaths.
5. When should the AED be applied?
A. After 5 cycles of CPR
B. Only if pulse absent for 2 minutes
C. As soon as it is available
D. After intubation
Rationale: Early defibrillation improves survival in shockable rhythms.
6. If a victim is gasping but unresponsive, you should:
A. Place in recovery position
B. Provide rescue breaths only
C. Begin CPR
D. Wait for EMS
Rationale: Agonal gasps are not normal breathing and require CPR.
,7. In child CPR (single rescuer), compression depth is:
A. 1 inch
B. About 2 inches (5 cm)
C. 3 inches
D. 4 inches
Rationale: Depth is about one-third chest diameter (~2 inches).
8. Infant pulse check location:
A. Carotid
B. Femoral
C. Radial
D. Brachial
Rationale: Brachial artery is recommended for infants.
9. If alone with an unresponsive child, after confirming arrest you should:
A. Call EMS immediately
B. Provide 2 minutes of CPR before leaving to activate EMS
C. Wait for help
D. Provide rescue breaths only
Rationale: Pediatric arrests often respiratory; initial CPR is prioritized.
10.Adult rescue breathing rate with pulse present:
A. 1 breath every 3–4 seconds
B. 1 breath every 5–6 seconds
C. 1 breath every 8 seconds
D. 30:2 ratio
Rationale: Adults with pulse receive 10–12 breaths per minute.
11.What ensures high-quality compressions?
A. Leaning between compressions
B. Shallow fast compressions
, C. Allowing full chest recoil
D. Interruptions every 10 seconds
Rationale: Full recoil allows venous return.
12.You witness collapse and AED indicates shock advised. After shock
delivery you should:
A. Recheck pulse
B. Reassess rhythm
C. Immediately resume CPR for 2 minutes
D. Provide breaths only
Rationale: Immediate CPR after shock improves outcomes.
13.Signs of severe airway obstruction in adults include:
A. Loud coughing
B. Inability to speak or cough effectively
C. Wheezing
D. Crying
Rationale: Ineffective cough indicates severe obstruction.
14.Proper hand placement for adult compressions:
A. Left chest
B. Upper sternum
C. Lower half of sternum
D. Over ribs
Rationale: Center of chest on lower half of sternum is correct.
15.Two-rescuer child compression ratio:
A. 30:2
B. 15:2
C. 5:1
EXAM PRACTICE QUESTIONS AND ANSWERS: THE MOST
RECENT AND COMPREHENSIVE VERSION WITH VERIFIED
ANSWERS; GUARANTEED PASS WITH INSTANT PDF
DOWNLOAD.
Exam Overview:
This 150-question comprehensive BLS Certification examination assesses foundational
knowledge, applied clinical skills, decision-making, professional standards, legal considerations,
team dynamics, infection control, airway management, AED use, adult/child/infant resuscitation,
choking management, special resuscitation circumstances, and real-world emergency scenarios
consistent with current guidelines from the American Heart Association and international BLS
standards.
1. A 55-year-old man collapses in a shopping mall. You ensure the scene is
safe. What is your next action?
A. Start chest compressions
B. Provide two rescue breaths
C. Check responsiveness and breathing simultaneously
D. Apply AED immediately
Rationale: After confirming scene safety, the rescuer checks responsiveness
and breathing (no more than 10 seconds) before activating emergency
response and beginning CPR.
2. During adult CPR, the correct compression rate is:
A. 80–100/min
B. 90–110/min
C. 100–120/min
D. 120–140/min
Rationale: High-quality CPR requires a compression rate of 100–120 per
minute.
,3. The recommended compression depth for an adult is:
A. 1 inch (2.5 cm)
B. 1.5 inches (4 cm)
C. At least 2 inches (5 cm) but not more than 2.4 inches (6 cm)
D. 3 inches (7.5 cm)
Rationale: Adequate depth improves perfusion; excessive depth may cause
injury.
4. The compression-to-ventilation ratio for a single rescuer adult CPR is:
A. 15:2
B. 30:1
C. 30:2
D. 15:1
Rationale: Standard adult single-rescuer ratio is 30 compressions to 2
breaths.
5. When should the AED be applied?
A. After 5 cycles of CPR
B. Only if pulse absent for 2 minutes
C. As soon as it is available
D. After intubation
Rationale: Early defibrillation improves survival in shockable rhythms.
6. If a victim is gasping but unresponsive, you should:
A. Place in recovery position
B. Provide rescue breaths only
C. Begin CPR
D. Wait for EMS
Rationale: Agonal gasps are not normal breathing and require CPR.
,7. In child CPR (single rescuer), compression depth is:
A. 1 inch
B. About 2 inches (5 cm)
C. 3 inches
D. 4 inches
Rationale: Depth is about one-third chest diameter (~2 inches).
8. Infant pulse check location:
A. Carotid
B. Femoral
C. Radial
D. Brachial
Rationale: Brachial artery is recommended for infants.
9. If alone with an unresponsive child, after confirming arrest you should:
A. Call EMS immediately
B. Provide 2 minutes of CPR before leaving to activate EMS
C. Wait for help
D. Provide rescue breaths only
Rationale: Pediatric arrests often respiratory; initial CPR is prioritized.
10.Adult rescue breathing rate with pulse present:
A. 1 breath every 3–4 seconds
B. 1 breath every 5–6 seconds
C. 1 breath every 8 seconds
D. 30:2 ratio
Rationale: Adults with pulse receive 10–12 breaths per minute.
11.What ensures high-quality compressions?
A. Leaning between compressions
B. Shallow fast compressions
, C. Allowing full chest recoil
D. Interruptions every 10 seconds
Rationale: Full recoil allows venous return.
12.You witness collapse and AED indicates shock advised. After shock
delivery you should:
A. Recheck pulse
B. Reassess rhythm
C. Immediately resume CPR for 2 minutes
D. Provide breaths only
Rationale: Immediate CPR after shock improves outcomes.
13.Signs of severe airway obstruction in adults include:
A. Loud coughing
B. Inability to speak or cough effectively
C. Wheezing
D. Crying
Rationale: Ineffective cough indicates severe obstruction.
14.Proper hand placement for adult compressions:
A. Left chest
B. Upper sternum
C. Lower half of sternum
D. Over ribs
Rationale: Center of chest on lower half of sternum is correct.
15.Two-rescuer child compression ratio:
A. 30:2
B. 15:2
C. 5:1
