PCU PCU Neurological & Renal Care 3

Question 1

A PCU patient post-craniotomy has clear drainage from the nose. Which action should the nurse take first?

Accepted Answer

Test the fluid for glucose using a reagent strip

Answer

Clear nasal drainage after craniotomy may represent CSF leak; testing for glucose (CSF contains glucose, nasal mucus does not at significant levels) helps identify CSF rhinorrhea.

Question 2

What is the target mean arterial pressure (MAP) range most commonly used in PCU patients following ischemic stroke to maintain cerebral perfusion?

Accepted Answer

≥65 mmHg (individualized per protocol)

Answer

A MAP ≥65 mmHg is a common minimum target, but post-stroke protocols often individualize targets higher (e.g., 70–90 mmHg) to maintain cerebral perfusion pressure.

Question 3

A PCU patient with acute kidney injury has a phosphorus level of 6.8 mg/dL. Which dietary restriction is most appropriate?

Accepted Answer

Phosphorus-restricted diet

Answer

Hyperphosphatemia in AKI is managed with phosphorus restriction and phosphate binders, as impaired kidneys cannot excrete excess phosphorus.

Question 4

Which sign or symptom differentiates neurogenic shock from hypovolemic shock in a PCU patient?

Accepted Answer

Warm, dry skin with bradycardia

Answer

Neurogenic shock causes loss of sympathetic tone, resulting in vasodilation (warm, dry skin) and bradycardia, unlike hypovolemic shock which causes vasoconstriction and tachycardia.

Question 5

A PCU patient's urine dipstick shows 3+ protein. Which condition does this finding most suggest?

Accepted Answer

Nephrotic syndrome or significant glomerular damage

Answer

Significant proteinuria (3+) indicates glomerular damage or nephrotic syndrome, as healthy kidneys retain most protein and do not filter it into urine in large amounts.

PCU - Progressive Care Unit Certification Practice Test

PCU - Progressive Care Unit Certification Practice Test

PCU PCU Neurological & Renal Care 3