BLS Practice Test: Video 5 Answers (25 Questions)

Question 1

Supplemental oxygen provided during rescue breathing should ideally deliver what fraction of inspired oxygen (FiO₂)?

Accepted Answer

Close to 100% (high-flow oxygen)

Answer

High-flow oxygen maximizes oxygen delivery to hypoxic tissues during resuscitation.

Question 2

An infant is found unresponsive with no breathing but has a pulse above 60/min. What is the correct next step?

Accepted Answer

Provide rescue breaths at 1 every 2–3 seconds

Answer

Infants with a pulse >60/min and absent breathing need rescue breathing only, at 20–30 breaths/min.

Question 3

A patient with a laryngectomy (neck breather) is in respiratory arrest. How should you provide rescue breaths?

Accepted Answer

Seal the stoma and ventilate directly into the stoma

Answer

For a total laryngectomy patient, ventilate directly into the stoma since the upper airway is disconnected.

Question 4

The bystander uses their cell phone to dial 911 and then goes in search of an AED. How will you intervene next?

Accepted Answer

look for breathing and check for a pulse simultaneously

Answer

While waiting for the bystander to call 911 and retrieve the AED, you should immediately assess the child's condition. This involves simultaneously looking for breathing and checking for a pulse for no more than 10 seconds. This assessment will guide whether to start CPR or provide rescue breaths.

Question 5

If an unresponsive patient has agonal gasps, how should you respond?

Accepted Answer

Treat as if not breathing and begin rescue breaths or CPR

Answer

Agonal gasps are ineffective and indicate cardiopulmonary arrest; begin CPR or rescue breathing immediately.

BLS - Basic Life Support Practice Test

BLS - Basic Life Support Practice Test

BLS Practice Test: Video 5 Answers (25 Questions)