BLS Algorithm Flashcard 2
Rationale
A. Rationale: Compressions should be ≥ 100/minute and intraarterial pressure > 20 mm Hg.
Question
CPR quality:
a. Requires pushing hard and fast
b. Is improved with 90 compressions/minute
c. Has an intraarterial pressure > 10 mm Hg
d. All of the above
Answer
a. Requires pushing hard and fast
Rationale
B. Rationale: While performing continuous chest compressions, the responder must deliver 1 breath every 6 seconds during CPR with an advanced airway such as an endotracheal tube.
Question
During CPR with an advanced airway, the responder must deliver 1 breath every:
a. 2 seconds
b. 6 seconds
c. 8 seconds
d. 10 seconds
Answer
b. 6 seconds
Rationale
B. Rationale: If adequate ventilation is achieved with a bag-mask, compressions should not be interrupted initially to place an advanced airway.
Question
If an advanced airway is not in place
a. One should be placed immediately.
b. The ratio of compressions to ventilations should be 30:2.
c. The ratio of compressions to ventilations should be 15:2 with 2-rescuer CPR.
d. All of the above
Answer
b. The ratio of compressions to ventilations should be 30:2.
Rationale
C. Rationale: Upon bringing a patient who was submerged out of the water into a safe environment, rescuers should provide 5 rescue breaths immediately (A-B-C instead of C-A-B).
Question
In a drowning scenario, upon bringing a patient out of the water into a safe environment, rescuers should :
a. Activate EMS immediately
b. Perform 5 rapid abdominal thrusts
c. Provide 5 rescue breaths immediately
d. None of the above
Answer
c. Provide 5 rescue breaths immediately
Rationale
C. Rationale: Good outcomes were observed when compression depth achieved is 2 inches.
Question
In high-quality CPR, the recommended depth of each chest compression is:
a. 1 inch
b. 1.5 inches
c. 2 inches
d. 3 inches
Answer
c. 2 inches
Rationale
A. Rationale: Lay rescuers are discouraged from checking for pulses or return of spontaneous circulation while performing CPR. Studies have shown that even medically trained personnel have difficulty finding pulses. The goal is to limit interruptions and perform high-quality chest compressions.
Question
Lay rescuers should limit the duration of pulse checks to within how many seconds?
a. Lay rescuers are discouraged from checking pulses.
b. 20 seconds
c. 30 seconds
d. 60 seconds
Answer
a. Lay rescuers are discouraged from checking pulses.
Rationale
B. Rationale: When the patient has successfully been intubated in a thee-rescuer CPR scenario, ventilations can be given by a single rescuer. Chest compressions are the priority during single-rescuer CPR.
Question
Positive pressure ventilations can be given by a single responder in which one of the following situations?
a. When there is only one rescuer performing CPR
b. When the patient has been successfully intubated in three-rescuer CPR
c. After a return of spontaneous circulation
d. None of the above
Answer
b. When the patient has been successfully intubated in three-rescuer CPR
Rationale
C. Rationale: The team must resume CPR while the manual defibrillator is charging. Always keep in mind to minimize interruptions in chest compressions. Once the unit is charged, the team’s defibrillator should have everyone clear the patient and then deliver the shock.
Question
The emergency response team is resuscitating a 67-year-old man in cardiac arrest. He has been hooked to the defibrillator, and after performing a rhythm check, the following ECG tracing is recorded:
As the assigned defibrillator of the emergency response team, what is your next course of action?
a. Have everyone clear the patient, charge the defibrillator, then deliver the shock.
b. Continue high-quality CPR for this nonshockable rhythm.
c. Continue high-quality CPR while waiting for the defibrillator to charge.
d. Give epinephrine 1 mg intravenous bolus injection.
Answer
c. Continue high-quality CPR while waiting for the defibrillator to charge.
Rationale
D. Rationale: The success of ROSC is determined by a faster rate of chest compressions, a greater number of chest compressions, and a lower duration of interruptions in chest compressions.
Question
The likelihood of attaining ROSC is aided by:
a. A faster rate of chest compressions
b. Greater number of chest compressions
c. Minimizing interruptions in chest compressions
d. All of the above
Answer
d. All of the above
Rationale
C. Rationale: Good patient outcomes were observed when compression depth achieved is 5 cm.
Question
The recommended depth of each chest compression is:
a. 2 cm
b. 3 cm
c. 5 cm
d. 6 cm
Answer
c. 5 cm