AHA BLS Exam Review - a. When the rescuer first sees a potential victim

AHA BLS Exam Review

• When should the rescuer initially ensure that the scene is safe?
• When the rescuer first sees a potential victim
• After the rescuer activates the emergency response system
• As emergency medical services arrive on the scene
• After an AED that is attached to the victim delivers a shock Correct answer- A
• As soon as an AED becomes available, which of the following is the first step the

rescuer should perform to operate the AED?

• Place the AED pads on the chest
• Deliver 2 rescue breaths before using the AED
• Turn on the AED
• Complete 5 cycles of chest compressions Correct answer- C
• After the AED delivers a shock, the rescuer should
• Wait for the AED to reanalyze the rhythm
• Immediately restart CPR, beginning with chest compressions
• Provide 2 ventilations to the victim
• Immediately check the carotid pulse for no more than 10 seconds Correct answer- B
• The 2010 AHA Guidelines for CPR and ECC recommend that to identify cardiac

arrest in an unresponsive victim with no breathing (or no normal breathing), a healthcare provider should check a pulse for no more than

• 25 seconds
• 10 seconds
• 15 seconds
• 20 seconds Correct answer- B
• After you identify an unresponsive victim with no breathing (or no normal breathing)

and no pulse, chest compressions should be initiated within

• 25 seconds
• 10 seconds
• 30 seconds
• 60 seconds Correct answer- B
• Which of the following victims need CPR?
• A victim with a pulse and who is having trouble breathing
• A victim with chest pain and indigestion
• A victim who is unresponsive, no normal breathing and absent/ inadequate pulse
• A victim who is unresponsive but is breathing adequately Correct answer- C
• Where should the hands be placed to perform chest compressions on an adult? 1 / 2

• On the lower half of the breastbone
• In the center of the breastbone
• On the upper portion of the abdomen
• On the upper half of the breastbone Correct answer- A
• The depth of compressions for an adult victim should be at least
• 1 inch
• 2 inches
• 3 inches
• 4 inches Correct answer- B
• Why is it important to compress to the appropriate depth during CPR?
• Adequate depth of compression is needed to create blood flow during compressions
• Adequate depth of compression is needed to create air flow into the lungs and

adequate oxygenation

• Adequate depth of compression is needed to prolong asystole
• Adequate depth of compression is needed to stimulate spontaneous respirations

Correct answer- A

• The recommended rate for performing chest compressions for victims of all ages is
• At least 40 compressions per minute
• At least 60 compressions per minute
• At least 80 compressions per minute
• At least 100 compressions per minute Correct answer- D
• The compression-to-ventilation ratio for 1-rescuer adult CPR is

a. 30:2

b. 5:1

c. 20:2

d. 15:2 Correct answer- A

• After the airway is opened, which of the following correctly states the proper

technique for delivering mouth-to-mouth ventilation?

• The rescuer opens the airway, seals their mouth over the victim's mouth, pinches the

victim's nose closed, and gives 2 breaths while watching for the chest to rise

• The rescuer opens the airway, seals their mouth over the victim's mouth, and gives

several small puffs while trying to avoid making the chest rise

• The rescuer opens the airway, seals their mouth over the victim's mouth, and gives 1

slow breath for a duration of 5 seconds

• The rescuer opens the airway, seals their mouth over the victim's mouth, and gives 5

slow breaths, each with a duration of 2 seconds, while watching for the chest to rise Correct answer- A

• The rescuer knows the rescue breath for in infant victim is effective when
• The stomach visibly rises
• The chest rises visibly
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