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What is the recommended compression rate for high-quality CPR in
adults?
A) 80 to 100 compressions per minute
B) 100 to 120 compressions per minute
C) 120 to 140 compressions per minute
D) 60 to 80 compressions per minute
Answer: B
Rationale: The AHA recommends a compression rate of 100 to 120
compressions per minute for high-quality CPR to ensure adequate
blood flow without causing excessive fatigue or incomplete chest
recoil.
What is the correct compression depth for an adult victim during
CPR?
A) At least 2 inches (5 cm) but no more than 2.4 inches (6 cm)
B) 1.5 inches (4 cm)
C) 3 inches (7.5 cm)
D) 2.5 to 3 inches (6 to 7.5 cm)
Answer: A
Rationale: Compressing the adult chest at least 2 inches (5 cm) but
avoiding going deeper than 2.4 inches (6 cm) minimizes the risk of
injury while ensuring effective circulation.
During two-rescuer CPR for an adult, what is the recommended
compression-to-ventilation ratio?
A) 15:2
B) 30:1
C) 30:2
D) 15:1
Answer: C
,Rationale: For adult CPR, the standard compression-to-ventilation
ratio is 30:2, whether performed by one or two rescuers, until an
advanced airway is placed.
Once an advanced airway is in place during CPR, how should
ventilations be administered?
A) 1 breath every 3 seconds (20 breaths/min)
B) 1 breath every 6 seconds (10 breaths/min)
C) 2 breaths every 5 seconds (24 breaths/min)
D) 1 breath every 10 seconds (6 breaths/min)
Answer: B
Rationale: Once an advanced airway is in place, compressions
should continue continuously without pausing, and ventilations
should be delivered at a rate of 1 breath every 6 seconds (10
breaths per minute).
Which of the following is the first medication administered for
Ventricular Fibrillation (VF) or pulseless Ventricular Tachycardia
(pVT)?
A) Amiodarone
B) Lidocaine
C) Epinephrine
D) Magnesium sulfate
Answer: C
Rationale: Epinephrine is the first-line drug for VF/pVT and should
be administered as soon as IV/IO access is available, typically every
3 to 5 minutes during cardiac arrest.
What is the recommended dose of Epinephrine for an adult in
cardiac arrest?
A) 1 mg IV/IO every 3 to 5 minutes
B) 0.5 mg IV/IO every 5 minutes
C) 2 mg IV/IO every 3 minutes
D) 0.1 mg IV/IO every 2 minutes
, Answer: A
Rationale: The standard adult dose of epinephrine for cardiac arrest
is 1 mg (10 mL of 1:10,000 concentration) administered
intravenously or intraosseously every 3 to 5 minutes.
When should an AED or manual defibrillator be used on a patient in
cardiac arrest?
A) Only after two cycles of CPR
B) As soon as it is available
C) After securing an advanced airway
D) Only if the rhythm is asystole
Answer: B
Rationale: Early defibrillation is critical in cardiac arrest. The
defibrillator should be used as soon as it is available to analyze the
rhythm and deliver a shock if indicated.
What is the recommended energy dose for the first biphasic
defibrillation shock?
A) 50 joules
B) 100 joules
C) Manufacturer's recommended dose (e.g., 120-200 joules)
D) 360 joules
Answer: C
Rationale: The first shock should use the manufacturer's
recommended energy dose. If the dose is unknown, a standard dose
like 200 joules is acceptable. Subsequent shocks should be
equivalent or higher.
After delivering a shock for VF/pVT, what is the immediate next
step?
A) Check for a pulse
B) Administer epinephrine
C) Resume CPR immediately
D) Analyze the rhythm
Answer: C