CMSRN Medical-Surgical Nursing MCQ 2

Question 1

A patient with chronic kidney disease has a serum potassium of 6.2 mEq/L. Which assessment finding requires the nurse's immediate attention?

Accepted Answer

Peaked T-waves on ECG

Answer

Peaked T-waves on ECG indicate cardiac toxicity from hyperkalemia and require immediate intervention to prevent life-threatening dysrhythmias.

Question 2

A nurse is caring for a post-operative patient who received general anesthesia 2 hours ago. Which respiratory assessment finding is most concerning?

Accepted Answer

Oxygen saturation of 88% on 2L nasal cannula

Answer

SpO2 of 88% despite supplemental oxygen indicates inadequate oxygenation and potential respiratory compromise requiring immediate intervention.

Question 3

A patient with type 2 diabetes is scheduled for a CT scan with contrast. Which pre-procedure action is most important?

Accepted Answer

Hold metformin 48 hours before the procedure

Answer

Metformin must be held before contrast administration because contrast-induced nephropathy can impair metformin excretion, leading to lactic acidosis.

Question 4

Which intervention is highest priority when a patient reports sudden-onset severe chest pain radiating to the left arm with diaphoresis?

Accepted Answer

Obtain a 12-lead ECG

Answer

Obtaining a 12-lead ECG is the first priority to identify ST changes and determine if the patient is experiencing an acute MI requiring emergent intervention.

Question 5

A patient receiving IV vancomycin develops flushing, erythema, and hypotension during the infusion. What is the most likely cause?

Accepted Answer

Red man syndrome

Answer

Red man syndrome is a rate-related reaction to rapid vancomycin infusion causing flushing, erythema, and hypotension due to histamine release.

CMSRN - Medical-Surgical Nursing Practice Test

CMSRN - Medical-Surgical Nursing Practice Test

CMSRN Medical-Surgical Nursing MCQ 2