Acute Care Nurse Practitioner Trivia 5

Question 1

A post-operative patient is oliguric with urine Na of 8 mEq/L and FENa <1%. What is the MOST likely cause?

Accepted Answer

Pre-renal azotemia

Answer

FENa <1% with low urine sodium indicates avid tubular sodium reabsorption, consistent with pre-renal azotemia from decreased effective circulating volume.

Question 2

Which finding is MOST consistent with ARDS on a chest X-ray?

Accepted Answer

Bilateral fluffy infiltrates in a non-cardiogenic pattern

Answer

ARDS produces bilateral, diffuse alveolar infiltrates without cardiomegaly or vascular redistribution, reflecting non-cardiogenic pulmonary edema.

Question 3

What is the purpose of the CAM-ICU tool in the acute care setting?

Accepted Answer

Screen for delirium in ICU patients

Answer

The Confusion Assessment Method for the ICU (CAM-ICU) is a validated tool for detecting delirium in mechanically ventilated and non-verbal ICU patients.

Question 4

A patient in cardiogenic shock has a cardiac index of 1.8 L/min/m² and PCWP of 24 mmHg. Which hemodynamic profile does this represent?

Accepted Answer

Cold and wet cardiogenic shock

Answer

Low cardiac index (<2.2) with elevated PCWP (>18) indicates cold and wet cardiogenic shock — poor forward flow with volume overload.

Question 5

Which electrolyte abnormality is a common COMPLICATION of massive blood transfusion?

Accepted Answer

Hyperkalemia from stored RBCs combined with metabolic alkalosis from citrate

Answer

Massive transfusion causes hypocalcemia (citrate chelates calcium) and initially hyperkalemia from stored RBCs, though citrate metabolism later produces alkalosis.

Acute Care Nurse Practitioner Practice Test

Acute Care Nurse Practitioner Practice Test

Acute Care Nurse Practitioner Trivia 5