NEWEST Basic Life Support (BLS)
Certification EXAM | ULTIMATE EXAM
WITH CORRECT ANSWERS AND
RATIONALES FOR CERTIFICATION
SUCCESS
**1. What is the recommended compression-to-
ventilation ratio for a single rescuer performing CPR
on an adult?**
A) 15:1
B) 15:2
C) 30:1
D) 30:2
Correct answer: D
Rationale: The AHA guidelines specify a 30:2 ratio for
single-rescuer CPR on adults, children, and infants to
ensure adequate perfusion and oxygenation .
**2. What is the recommended compression-to-
ventilation ratio for two-rescuer CPR on an infant?**
A) 15:2
B) 30:2
,C) 15:1
D) 30:1
Correct answer: A
Rationale: A 15:2 ratio is recommended for two-
rescuer infant and child CPR to increase the number
of ventilations while maintaining circulation .
**3. How deep should you compress the chest during
adult CPR?**
A) 1 inch
B) 1.5 inches
C) At least 2 inches (5 cm)
D) At least 3 inches (7.5 cm)
Correct answer: C
Rationale: Adult compressions should be at least 2
inches (5 cm) deep, but no more than 2.4 inches (6
cm). This depth ensures adequate blood flow to vital
organs .
**4. How deep should you compress the chest during
infant CPR (with two thumbs)?**
A) 1 inch (2.5 cm)
B) 1.5 inches (4 cm)
,C) 2 inches (5 cm)
D) 2.4 inches (6 cm)
Correct answer: B
Rationale: Infant compressions should be
approximately 1.5 inches (4 cm) deep, which is about
one-third the anterior-posterior diameter of the chest
.
**5. What is the recommended rate for chest
compressions for all age groups?**
A) 60-80 per minute
B) 80-100 per minute
C) 100-120 per minute
D) 120-140 per minute
Correct answer: C
Rationale: The AHA recommends a compression rate
of 100 to 120 per minute for all age groups to
optimize cardiac output and coronary perfusion
pressure .
**6. Where should you place your hands to perform
chest compressions on an adult?**
, A) On the lower half of the sternum (center of the
chest)
B) On the left side of the chest, over the heart
C) On the xiphoid process
D) On the upper abdomen
Correct answer: A
Rationale: Proper hand placement is the center of the
chest on the lower half of the sternum. This allows for
effective compressions and minimizes the risk of
injury .
**7. What is the correct compression-to-ventilation
ratio for two-rescuer CPR on a child?**
A) 15:2
B) 30:2
C) 15:1
D) 30:1
Correct answer: A
Rationale: Two-rescuer child and infant CPR uses a
15:2 ratio to provide more frequent ventilations, as
cardiac arrests in children are often due to
respiratory failure .
Certification EXAM | ULTIMATE EXAM
WITH CORRECT ANSWERS AND
RATIONALES FOR CERTIFICATION
SUCCESS
**1. What is the recommended compression-to-
ventilation ratio for a single rescuer performing CPR
on an adult?**
A) 15:1
B) 15:2
C) 30:1
D) 30:2
Correct answer: D
Rationale: The AHA guidelines specify a 30:2 ratio for
single-rescuer CPR on adults, children, and infants to
ensure adequate perfusion and oxygenation .
**2. What is the recommended compression-to-
ventilation ratio for two-rescuer CPR on an infant?**
A) 15:2
B) 30:2
,C) 15:1
D) 30:1
Correct answer: A
Rationale: A 15:2 ratio is recommended for two-
rescuer infant and child CPR to increase the number
of ventilations while maintaining circulation .
**3. How deep should you compress the chest during
adult CPR?**
A) 1 inch
B) 1.5 inches
C) At least 2 inches (5 cm)
D) At least 3 inches (7.5 cm)
Correct answer: C
Rationale: Adult compressions should be at least 2
inches (5 cm) deep, but no more than 2.4 inches (6
cm). This depth ensures adequate blood flow to vital
organs .
**4. How deep should you compress the chest during
infant CPR (with two thumbs)?**
A) 1 inch (2.5 cm)
B) 1.5 inches (4 cm)
,C) 2 inches (5 cm)
D) 2.4 inches (6 cm)
Correct answer: B
Rationale: Infant compressions should be
approximately 1.5 inches (4 cm) deep, which is about
one-third the anterior-posterior diameter of the chest
.
**5. What is the recommended rate for chest
compressions for all age groups?**
A) 60-80 per minute
B) 80-100 per minute
C) 100-120 per minute
D) 120-140 per minute
Correct answer: C
Rationale: The AHA recommends a compression rate
of 100 to 120 per minute for all age groups to
optimize cardiac output and coronary perfusion
pressure .
**6. Where should you place your hands to perform
chest compressions on an adult?**
, A) On the lower half of the sternum (center of the
chest)
B) On the left side of the chest, over the heart
C) On the xiphoid process
D) On the upper abdomen
Correct answer: A
Rationale: Proper hand placement is the center of the
chest on the lower half of the sternum. This allows for
effective compressions and minimizes the risk of
injury .
**7. What is the correct compression-to-ventilation
ratio for two-rescuer CPR on a child?**
A) 15:2
B) 30:2
C) 15:1
D) 30:1
Correct answer: A
Rationale: Two-rescuer child and infant CPR uses a
15:2 ratio to provide more frequent ventilations, as
cardiac arrests in children are often due to
respiratory failure .
