Basic Life Support (BLS) Provider Exam
Practice Questions And Correct Answers
(Verified Answers) Plus Rationales 2026
Q&A | Instant Download Pdf
1. What is the correct compression rate for adult CPR?
A. 60–80/min
B. 80–100/min
C. 100–120/min
D. 120–140/min
Rationale: High-quality CPR requires a rate of 100–120 compressions
per minute to maintain adequate coronary and cerebral perfusion.
2. What is the correct compression depth for an adult?
A. 1–2 cm
B. 3–4 cm
C. At least 5 cm (2 inches)
D. 7–8 cm
Rationale: Adult compressions should be at least 5 cm but not more
than 6 cm to ensure effective circulation.
3. What is the first step when you find an unresponsive patient?
A. Start chest compressions
B. Give rescue breaths
C. Check for scene safety
D. Attach AED immediately
Rationale: Scene safety must always be confirmed before
approaching any patient.
4. The correct compression-to-ventilation ratio for a single rescuer adult
CPR is:
A. 15:2
, B. 30:2
C. 15:1
D. 30:1
Rationale: The standard ratio for adult single-rescuer CPR is 30
compressions to 2 breaths.
5. Which device is used to deliver an electric shock to a pulseless
patient?
A. Oxygen tank
B. Suction device
C. AED (Automated External Defibrillator)
D. Nasal cannula
Rationale: AEDs analyze heart rhythm and deliver shocks for
shockable rhythms like VF or pulseless VT.
6. In adult CPR, where should hand placement be?
A. Upper sternum
B. Left chest
C. Lower abdomen
D. Center of the chest (lower half of sternum)
Rationale: Proper hand placement ensures effective compressions
over the heart.
7. How long should you check for a pulse in BLS?
A. 1 minute
B. 10–15 seconds
C. No more than 10 seconds
D. 30 seconds
Rationale: Pulse checks longer than 10 seconds delay CPR and reduce
survival chances.
8. What is the correct action if a patient is gasping but unresponsive?
A. Do nothing
B. Wait and reassess
C. Start CPR immediately
D. Give oxygen only
Rationale: Agonal gasps are not normal breathing and require
immediate CPR.
, 9. What is the correct compression-to-ventilation ratio for 2-rescuer CPR
in adults?
A. 15:2
B. 20:2
C. 30:2
D. 10:1
Rationale: Adult CPR ratio remains 30:2 regardless of number of
rescuers.
10. What is the first link in the adult Chain of Survival?
A. Defibrillation
B. Advanced care
C. Early recognition and activation of emergency response system
D. Rehabilitation
Rationale: Early recognition and EMS activation improves survival
outcomes.
11. For an unresponsive choking adult, what should you do first?
A. Blind finger sweep
B. Give water
C. Start CPR
D. Encourage coughing
Rationale: If unresponsive, treat as cardiac arrest and begin CPR.
12. What is the correct depth for chest compressions in a child?
A. 1 cm
B. 2 cm
C. About 5 cm (2 inches)
D. 6–7 cm
Rationale: Child compression depth is about 1/3 chest depth (~5 cm).
13. Infant compression technique for single rescuer CPR uses:
A. Two hands
B. Heel of one hand
C. Two fingers
D. Palm of both hands
Rationale: Two fingers are used for single-rescuer infant
compressions.
Practice Questions And Correct Answers
(Verified Answers) Plus Rationales 2026
Q&A | Instant Download Pdf
1. What is the correct compression rate for adult CPR?
A. 60–80/min
B. 80–100/min
C. 100–120/min
D. 120–140/min
Rationale: High-quality CPR requires a rate of 100–120 compressions
per minute to maintain adequate coronary and cerebral perfusion.
2. What is the correct compression depth for an adult?
A. 1–2 cm
B. 3–4 cm
C. At least 5 cm (2 inches)
D. 7–8 cm
Rationale: Adult compressions should be at least 5 cm but not more
than 6 cm to ensure effective circulation.
3. What is the first step when you find an unresponsive patient?
A. Start chest compressions
B. Give rescue breaths
C. Check for scene safety
D. Attach AED immediately
Rationale: Scene safety must always be confirmed before
approaching any patient.
4. The correct compression-to-ventilation ratio for a single rescuer adult
CPR is:
A. 15:2
, B. 30:2
C. 15:1
D. 30:1
Rationale: The standard ratio for adult single-rescuer CPR is 30
compressions to 2 breaths.
5. Which device is used to deliver an electric shock to a pulseless
patient?
A. Oxygen tank
B. Suction device
C. AED (Automated External Defibrillator)
D. Nasal cannula
Rationale: AEDs analyze heart rhythm and deliver shocks for
shockable rhythms like VF or pulseless VT.
6. In adult CPR, where should hand placement be?
A. Upper sternum
B. Left chest
C. Lower abdomen
D. Center of the chest (lower half of sternum)
Rationale: Proper hand placement ensures effective compressions
over the heart.
7. How long should you check for a pulse in BLS?
A. 1 minute
B. 10–15 seconds
C. No more than 10 seconds
D. 30 seconds
Rationale: Pulse checks longer than 10 seconds delay CPR and reduce
survival chances.
8. What is the correct action if a patient is gasping but unresponsive?
A. Do nothing
B. Wait and reassess
C. Start CPR immediately
D. Give oxygen only
Rationale: Agonal gasps are not normal breathing and require
immediate CPR.
, 9. What is the correct compression-to-ventilation ratio for 2-rescuer CPR
in adults?
A. 15:2
B. 20:2
C. 30:2
D. 10:1
Rationale: Adult CPR ratio remains 30:2 regardless of number of
rescuers.
10. What is the first link in the adult Chain of Survival?
A. Defibrillation
B. Advanced care
C. Early recognition and activation of emergency response system
D. Rehabilitation
Rationale: Early recognition and EMS activation improves survival
outcomes.
11. For an unresponsive choking adult, what should you do first?
A. Blind finger sweep
B. Give water
C. Start CPR
D. Encourage coughing
Rationale: If unresponsive, treat as cardiac arrest and begin CPR.
12. What is the correct depth for chest compressions in a child?
A. 1 cm
B. 2 cm
C. About 5 cm (2 inches)
D. 6–7 cm
Rationale: Child compression depth is about 1/3 chest depth (~5 cm).
13. Infant compression technique for single rescuer CPR uses:
A. Two hands
B. Heel of one hand
C. Two fingers
D. Palm of both hands
Rationale: Two fingers are used for single-rescuer infant
compressions.
