#1
What is the first step in Basic Life Support (BLS) for an unresponsive person?
Check for responsiveness
ExplanationEnsure safety and assess for consciousness.
#2
What is the purpose of an Automated External Defibrillator (AED) in cardiac arrest?
To analyze heart rhythm and deliver a shock if needed
ExplanationRestores normal heart rhythm by electrical intervention.
#3
Which of the following is a common cause of sudden cardiac arrest?
Choking
ExplanationObstructs airway and interrupts oxygen supply.
#4
Which of the following statements about AEDs is true?
They are only effective for shockable rhythms
ExplanationLimited utility in non-shockable cardiac rhythms.
#5
Which of the following rhythms is considered shockable in cardiac arrest?
Ventricular fibrillation (VF)
ExplanationResponds to electrical defibrillation.
#6
What does 'BLS' stand for in the context of emergency medical care?
Basic Life Support
ExplanationFoundational care to sustain life until advanced help arrives.
#7
What is the correct compression-to-ventilation ratio for adult CPR?
30 compressions to 2 ventilations
ExplanationMaintains oxygenation while providing circulation.
#8
What is the recommended depth for chest compressions during CPR for adults?
At least 2 inches (5 cm)
ExplanationEnsures adequate blood circulation.
#9
What is the correct hand placement for chest compressions during adult CPR?
Between the nipples
ExplanationMaximizes force transfer to the sternum.
#10
What is the recommended rate for chest compressions during CPR for adults?
100 compressions per minute
ExplanationOptimizes blood flow and cardiac output.
#11
Which of the following is a sign of effective CPR in an adult?
The person's chest rises with ventilations
ExplanationIndicates effective airway management and circulation.
#12
What is the recommended ratio of chest compressions to breaths for CPR in infants?
30:2
ExplanationMaintains oxygenation and circulation in infants.
#13
What is the correct placement of AED pads on a person's chest?
One pad on the upper right chest, the other pad below the left nipple
ExplanationOptimizes electrical conduction through the heart.
#14
How should you prepare the chest before attaching AED pads?
Drying the chest if it's wet and removing any excessive chest hair
ExplanationEnsures optimal pad adhesion and electrical conduction.
#15
What is the correct sequence of actions when using an AED?
Apply pads, analyze rhythm, deliver shock if advised, perform CPR
ExplanationFollows standardized protocol for effective intervention.
#16
What is the recommended depth for chest compressions during infant CPR?
At least 1.5 inches (4 cm)
ExplanationEnsures adequate blood flow while minimizing injury.
#17
What is the recommended age and weight range for using an adult AED pad on a child?
1-8 years old and 10-25 kg
ExplanationBalances electrical output with body size in children.
#18
What is the recommended compression depth for children during CPR?
At least 2 inches (5 cm)
ExplanationProvides adequate circulation without causing harm.