Basics Flashcards
7 cards from real ACLS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Basics flashcards as text
In ACLS, what is the correct action immediately after delivering a defibrillation shock?
Answer: Resume CPR immediately starting with chest compressions
CPR should resume immediately after a shock without pausing to check pulse or rhythm, then a rhythm check occurs after 2 minutes.
Which IV/IO access site is preferred for medication administration during cardiac arrest?
Answer: Antecubital or external jugular vein
Peripheral IV access at the antecubital or external jugular site is preferred due to speed and safety during arrest situations.
What is the recommended energy level for the first biphasic defibrillation shock in adults?
Answer: 120–200 J
The initial biphasic shock dose is 120–200 J based on the manufacturer's recommendation, or 200 J if unknown.
Which of the following is an indication for intraosseous (IO) access during cardiac arrest?
Answer: Failed or delayed IV access
IO access is indicated when peripheral IV access is not rapidly achievable during cardiac arrest.
What is the purpose of end-tidal CO2 (ETCO2) monitoring during cardiac arrest?
Answer: To confirm correct endotracheal tube placement and assess CPR quality
ETCO2 confirms ETT placement and reflects cardiac output during CPR — values above 10 mmHg suggest effective compressions.
A patient in cardiac arrest has an ETCO2 value that suddenly rises to 40 mmHg. What does this most likely indicate?
Answer: Return of spontaneous circulation (ROSC)
A sudden rise in ETCO2 to near-normal levels during CPR is a strong indicator of ROSC.
According to ACLS guidelines, how should the team leader minimize interruptions to chest compressions?
Answer: Limit pulse checks to 2–3 seconds and minimize pause duration
Pulse and rhythm checks should be brief (under 10 seconds) to minimize CPR interruptions and maintain coronary perfusion pressure.