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

Greater than 50 mmHg

Answer

Greater than 80 mmHg

Answer

Greater than 90 mmHg

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

Maintain 100% FiO2 to prevent re-arrest

Answer

Increase PEEP to reduce FiO2 requirement

Answer

Switch to non-invasive ventilation

Question 3

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

Accepted Answer

Hypomagnesemia

Answer

Hypernatremia

Answer

Hypercalcemia

Answer

Hyperphosphatemia

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

Significantly better outcomes at 33°C

Answer

Significantly better outcomes at 36°C

Answer

Worse outcomes at both targets compared to no cooling

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

Right bundle branch block

Answer

Sinus tachycardia with nonspecific T-wave changes

Answer

QTc prolongation greater than 500 ms

Question 6

When should neurological prognostication be performed after targeted temperature management in a post-cardiac arrest patient?

Accepted Answer

At least 72 hours after return to normothermia

Answer

Immediately after ROSC

Answer

Within 24 hours of ROSC

Answer

After 48 hours of normothermia if sedation is minimal

Question 7

A post-arrest patient is mechanically ventilated with PaCO2 of 30 mmHg. Why is this problematic?

Accepted Answer

Hypocapnia causes cerebral vasoconstriction and reduces cerebral blood flow

Answer

Hypocapnia increases intracranial pressure significantly

Answer

Low CO2 directly worsens myocardial contractility

Answer

Hypocapnia triggers catecholamine surge causing re-arrest