ACLS Post-Cardiac Arrest Care 2

Question 1

What is the recommended mean arterial pressure (MAP) target during post-cardiac arrest care to ensure adequate organ perfusion?

Accepted Answer

Greater than 65 mmHg

Answer

A MAP greater than 65 mmHg is the minimum recommended to ensure adequate perfusion of vital organs after ROSC.

Question 2

A post-cardiac arrest patient's arterial blood gas shows PaO2 of 200 mmHg on 100% FiO2. What is the most appropriate next action?

Accepted Answer

Wean FiO2 to achieve SpO2 94–98%

Answer

Hyperoxia is harmful post-arrest; FiO2 should be titrated to maintain SpO2 94–98% and PaO2 within normal range.

Question 3

Which electrolyte abnormality is most commonly associated with recurrent ventricular fibrillation after ROSC?

Accepted Answer

Hypomagnesemia

Answer

Hypomagnesemia lowers the threshold for ventricular fibrillation and should be corrected in post-arrest patients.

Question 4

Targeted temperature management (TTM) at 36°C versus 33°C has been shown to result in:

Accepted Answer

Similar neurological outcomes between the two targets

Answer

The TTM trial demonstrated no significant difference in outcomes between 33°C and 36°C, supporting either target as acceptable.

Question 5

Which finding on a 12-lead ECG post-ROSC is the strongest indication for emergent coronary angiography?

Accepted Answer

ST-segment elevation in two or more contiguous leads

Answer

ST-elevation post-ROSC indicates acute coronary occlusion and warrants immediate catheterization lab activation regardless of patient responsiveness.

ACLS Practice Test