#1
What does the acronym 'BLS' stand for in the context of emergency medical care?
Basic Life Support
ExplanationBLS provides immediate care to victims of cardiac arrest or other medical emergencies to maintain circulation and oxygenation.
#2
Which of the following is a primary goal of basic life support (BLS)?
Maintaining circulation and oxygenation
ExplanationMaintaining circulation and oxygenation is essential to preserve vital organ function during emergencies.
#3
During CPR, where should chest compressions be performed?
Over the sternum
ExplanationChest compressions should be performed directly over the sternum to effectively pump blood through the body.
#4
Which of the following is a correct step in the 'ABC' approach to CPR?
Airway, Breathing, Circulation
ExplanationThe ABC approach prioritizes establishing and maintaining the airway, providing breaths, and ensuring circulation.
#5
Which of the following is a correct ratio of compressions to breaths during CPR for an adult victim?
30 compressions to 2 breaths
ExplanationThis ratio maximizes blood circulation and oxygenation in adult victims during CPR.
#6
What is the recommended depth of chest compressions for adult victims during CPR?
At least 2 inches (5 centimeters)
ExplanationA compression depth of at least 2 inches ensures effective blood circulation in adult victims.
#7
Which of the following actions should you take when using an automated external defibrillator (AED)?
Administer chest compressions while the AED analyzes
ExplanationChest compressions should continue while the AED assesses the victim's heart rhythm for potential shocks.
#8
Which of the following actions should you take first when encountering an unresponsive victim?
Activate emergency medical services (EMS)
ExplanationImmediate activation of EMS ensures professional assistance arrives as soon as possible.
#9
What is the correct hand placement for chest compressions on an adult victim during CPR?
Center of the chest between the nipples
ExplanationProper hand placement maximizes the effectiveness of chest compressions in adult victims.
#10
In a situation where you're the first responder to a cardiac arrest, what should you do first?
Activate the emergency response system
ExplanationActivating the emergency response system ensures professional help arrives promptly.
#11
What is the recommended depth of chest compressions for pediatric victims during CPR?
At least 1 1/2 inches (4 centimeters)
ExplanationPediatric victims require gentler compressions to avoid causing harm while ensuring adequate circulation.
#12
What is the ratio of compressions to breaths during CPR for pediatric victims?
10 compressions to 2 breaths
ExplanationThe compression-breath ratio for pediatric victims provides the necessary oxygenation while adapting to their smaller size and needs.
#13
What is the recommended compression rate during CPR for both adult and pediatric victims?
Between 100 and 120 compressions per minute
ExplanationMaintaining a consistent compression rate optimizes blood flow and oxygenation during CPR for victims of all ages.
#14
What is the main purpose of rescue breaths during CPR?
To provide oxygen to the victim's lungs
ExplanationRescue breaths aim to deliver oxygen to the victim's lungs, supporting vital functions during CPR.
#15
What is the recommended compression depth for infant victims during CPR?
1/2 inch (1.25 centimeters)
ExplanationInfant victims require gentler compressions due to their smaller size to avoid causing harm while ensuring adequate circulation.
#16
In the context of basic life support, what is the primary purpose of an airway adjunct?
To maintain an open airway
ExplanationAirway adjuncts help prevent airway obstruction and maintain proper airflow during basic life support interventions.