ACLS Exam Review ( Updated 2024 ) Complete Questions & Answers (Solved) 100% Correct
- What are the 6 principles behind AHA's definition of "High-Quality CPR". (ie. What needs
to be done to achieve "high-quality" CPR?): High-quality CPR means
Answer:
- Rate of at least 100 chest compressions/minute.
- Compression depth of at least 2" in the adult victim.
- Complete chest recoil after each chest compression.
- Minimizing interruption in compressions.
- Switching providers every 2 minutes (5 cycles of CPR).
- Avoiding excessive ventilations.
- What does the AHA suggest as a target for CPP (coronary perfusion pressure) to increase
the chances of SROC (spont. return of circulation)?Answer: It is recommended that the CPP be 10mm/Hg to give the best chances for achieving SROC.This requires "high-quality CPR".
- An end-tidal CO2 reading of will not achieve ROSC according to
the AHA.Answer: A PETCO2 reading of 10mm Hg or less indicates poor or inadequate CPP (coronary perfusion pressure) because chest compressions are not providing adequate circulation to the lungs to eliminate CO2.
- An intra-arterial relaxation pressure of < indicates ineffective
compressions.Answer: Intra-arterial relaxation pressures of < 20mmHg correlate with poor CPP (coronary perfusion pressure) and ineffective compressions.
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- The recommended sternal compression depth for an adult during resuscitation is inches.
Answer: The recommended sternal compression depth for an adult during resuscitation is 2 inches.
Keep in mind, there needs to be complete chest recoil or CPP will remain sub-optimal.
- AHA recommends that, during resuscitation, the tidal volumes for adults be between and
mmHg.Answer: Adult Vt's should be between 500 - 600 mmHg which correlates to about 1/2 the squeeze of an adult ambubag.
- What 4 negative consequences of excessive ventilation does the AHA emphasize?
Answer: Excessive ventilation can cause:
- gastric inflation
- increased intrathoracic pressures
- decreased venous return
- overall lower survival
- What are the 5 "critical concepts" for BLS according to the AHA?
Answer: The critical concepts are:
- Push hard and fast (100+/min)
- Allow complete chest recoil
- Minimize interruptions in compressions
- Switch providers Q 2 minutes
- Avoid excessive ventilations
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