American Red Cross BLSLesson 3 Basic Life Support for
Adults Questions & Answers 2025/2026
when to perform Basic Life Support for Adults? - When the heart and normal breathing have stopped
what actions are required after confirming the patient needs BLS? - Basic life support (BLS) for a patient
in cardiac arrest includes high-quality CPR and the use of an AED. BLS also includes the delivery of
ventilations to patients in respiratory arrest.
why we perform CPR? - CPR is needed to circulate blood containing oxygen to the patient's vital organs.
CPR - cardiopulmonary resuscitation
what is the purpose of chest compressions and ventilations? - provides only a fraction of the normal
blood flow to the brain and heart.
ROSC - Return of Spontaneous Circulation- when pulses return to a patient who has been in cardiac
arrest
To optimize patient outcomes and increase the likelihood of _____________________________
providers must strive to provide the highest quality CPR at all times. - return of spontaneous circulation
(ROSC),
high-quality CPR includes: - 30 chest compressions followed by 2 ventilations.
You are evaluating the quality of CPR provided by the BLS team. Which methods would you use for this
evaluation? - -Visual observation
-Chest compression fraction