BLS Airway Management & Ventilation 2 — Questions and Answers
Question 1: When performing a head-tilt chin-lift on an adult, where should you place your fingers to lift the chin?
- On the soft tissue under the chin
- On the bony part of the lower jaw (Correct answer)
- On the throat directly below the jaw
- On the upper lip
Correct answer: On the bony part of the lower jaw
Fingers should be placed on the bony part of the lower jaw to lift the chin without compressing the soft tissue, which could obstruct the airway.
Question 2: A bag-mask device should deliver approximately how much air volume per breath to an adult?
- 200–300 mL
- 400–600 mL (Correct answer)
- 800–1000 mL
- 1200–1500 mL
Correct answer: 400–600 mL
Each breath should deliver approximately 500–600 mL (roughly 400–600 mL range), enough to produce visible chest rise without causing gastric inflation.
Question 3: Which of the following is a sign that rescue breaths are being delivered correctly?
- The patient's abdomen rises with each breath
- The patient's chest visibly rises with each breath (Correct answer)
- Air can be heard escaping from the mouth
- The patient coughs after each breath
Correct answer: The patient's chest visibly rises with each breath
Visible chest rise with each breath confirms air is entering the lungs rather than the stomach.
Question 4: In an unresponsive adult patient with no suspected spinal injury, which maneuver is preferred to open the airway?
- Jaw thrust
- Head-tilt chin-lift (Correct answer)
- Finger sweep
- Neck extension only
Correct answer: Head-tilt chin-lift
The head-tilt chin-lift is the preferred airway maneuver for unresponsive patients without suspected spinal injury.
Question 5: How long should each rescue breath be delivered during CPR?
- Less than 0.5 seconds
- About 1 second (Correct answer)
- 2–3 seconds
- 4–5 seconds
Correct answer: About 1 second
Each breath should be given over about 1 second, which is enough to produce chest rise without causing excessive gastric inflation.
Question 6: What is the correct compression-to-ventilation ratio for a single rescuer performing adult CPR?
- 15:2
- 30:2 (Correct answer)
- 30:1
- 15:1
Correct answer: 30:2
For adult CPR with one or two rescuers, the recommended compression-to-ventilation ratio is 30:2.
Question 7: When using a bag-mask device with two rescuers, how should the mask be held?
- One hand on the mask, one pumping the bag
- Both hands on the mask forming an E-C clamp while the second rescuer squeezes the bag (Correct answer)
- One rescuer holds the head, the other holds the mask and squeezes the bag
- Both hands squeeze the bag while the mask rests on the face
Correct answer: Both hands on the mask forming an E-C clamp while the second rescuer squeezes the bag
With two rescuers, one forms an E-C clamp with both hands to maintain a mask seal while the second rescuer squeezes the bag, improving ventilation effectiveness.
BLS Airway Management & Ventilation 2
When performing a head-tilt chin-lift on an adult, where should you place your fingers to lift the chin?