#1
What is the first step in the Basic Life Support (BLS) sequence?
Check for responsiveness
ExplanationChecking for responsiveness is the initial action to assess if the victim is conscious and breathing.
#2
What is the purpose of the head-tilt/chin-lift maneuver in CPR?
To open the airway
ExplanationThis maneuver helps to straighten the airway for effective breathing.
#3
What does the acronym 'CPR' stand for?
Cardiopulmonary Resuscitation
ExplanationCPR involves resuscitative measures to restore cardiac and pulmonary function.
#4
What is the recommended compression depth for adult CPR?
2 inches (5 centimeters)
ExplanationCompressions should be deep enough to adequately circulate blood, typically about 2 inches or 5 centimeters.
#5
During CPR, how should you position your hands for chest compressions on an adult?
Place heel of one hand on center of chest, other hand on top
ExplanationPositioning your hands in the center of the chest ensures effective compression of the heart.
#6
What does the 'A' stand for in the 'ABCDE' approach to CPR?
Airway
ExplanationThe 'A' in 'ABCDE' signifies the need to ensure a clear airway for effective respiration.
#7
Which rhythm is shockable during cardiac arrest?
Ventricular fibrillation (VF)
ExplanationVF is a chaotic rhythm of the heart that can be corrected with defibrillation.
#8
What is the recommended compression rate for CPR in adults?
100 compressions per minute
ExplanationPerforming compressions at a rate of 100 per minute ensures adequate blood flow.
#9
In adult CPR, what is the compression to ventilation ratio?
30:2
ExplanationThe ratio of 30 compressions to 2 ventilations helps maintain oxygenation and circulation.
#10
What is the purpose of the recovery position?
To maintain an open airway
ExplanationThe recovery position helps keep the airway clear and prevents aspiration.
#11
What is the ratio of chest compressions to rescue breaths in two-rescuer CPR for an adult?
30:2
ExplanationIn two-rescuer CPR, the ratio of compressions to breaths remains the same as for single rescuer CPR.
#12
Which of the following is a common cause of cardiac arrest in adults?
Electric shock
ExplanationElectric shock can disrupt the heart's rhythm, leading to cardiac arrest.
#13
What is the correct sequence of actions in the Chain of Survival?
Early recognition, early access, early CPR, early defibrillation
ExplanationEarly recognition and intervention are key to improving survival rates in cardiac arrest.