BLS MCQs – Set 10 (Questions 91–100)
91. What is the recommended rescue breathing rate for a child or infant with a pulse?
A. 1 breath every 2 seconds
B. 1 breath every 6–8 seconds
C. 1 breath every 3–5 seconds
D. 1 breath every 10 seconds
✅ Answer: C. 1 breath every 3–5 seconds
92. What is the appropriate way to provide chest compressions to an obese adult?
A. Use only one hand
B. Compress over the lower ribs
C. Perform compressions on the center of the chest with both hands
D. Avoid compressions due to risk
✅ Answer: C. Perform compressions on the center of the chest with both hands
93. What is the proper location to check the pulse in an unconscious infant?
A. Radial
B. Carotid
C. Brachial
D. Femoral
✅ Answer: C. Brachial
94. When should an untrained layperson begin chest compressions?
A. After checking pulse for 10 seconds
B. Immediately after confirming unresponsiveness and no normal breathing
C. Only when AED is ready
D. After rescue breaths
✅ Answer: B. Immediately after confirming unresponsiveness and no normal breathing
95. Why is minimizing interruptions in compressions important?
A. It allows for oxygenation
B. It maintains perfusion pressure
C. It gives the rescuer time to rest
D. It prevents air leaks
✅ Answer: B. It maintains perfusion pressure
96. What is the most appropriate technique to open the airway of a trauma victim with possible neck injury?
A. Head tilt–chin lift
B. Jaw-thrust maneuver
C. Abdominal thrust
D. Neck extension
✅ Answer: B. Jaw-thrust maneuver
97. What is a sign of ROSC (Return of Spontaneous Circulation)?
A. Continued gasping
B. Weak peripheral pulses
C. Sudden rise in EtCO₂ (end-tidal CO₂)
D. Muscle twitching
✅ Answer: C. Sudden rise in EtCO₂ (end-tidal CO₂)
98. What is the maximum time you should spend checking for breathing and a pulse?
A. 5 seconds
B. 10 seconds
C. 15 seconds
D. 20 seconds
✅ Answer: B. 10 seconds
99. What is the appropriate compression technique for a single rescuer providing infant CPR?
A. Two-thumb encircling hands technique
B. One hand in center of chest
C. Two fingers just below nipple line
D. Two fists at midline
✅ Answer: C. Two fingers just below nipple line
100. When performing adult CPR, where should your shoulders be in relation to your hands?
A. Off to the side
B. Directly over the hands
C. Behind the hands
D. At chest level
✅ Answer: B. Directly over the hands
