OCN OCN General 2

Question 1

A patient receiving cisplatin-based chemotherapy develops tinnitus and decreased hearing. Which intervention is the priority?

Accepted Answer

Notify the oncologist and hold the next dose

Answer

Tinnitus and hearing loss are signs of cisplatin-induced ototoxicity, a serious irreversible adverse effect requiring immediate provider notification before continuing therapy.

Question 2

Which laboratory finding most strongly indicates tumor lysis syndrome (TLS) in a newly treated leukemia patient?

Accepted Answer

Elevated serum potassium, phosphate, and uric acid with decreased calcium

Answer

TLS is characterized by hyperkalemia, hyperphosphatemia, hyperuricemia, and hypocalcemia due to rapid cell destruction releasing intracellular contents.

Question 3

A nurse is caring for a patient with cancer-related fatigue. Which recommendation is most evidence-based?

Accepted Answer

Encourage a structured, moderate aerobic exercise program

Answer

Evidence consistently supports moderate aerobic exercise as the most effective intervention for cancer-related fatigue during and after treatment.

Question 4

A patient is prescribed ondansetron for chemotherapy-induced nausea. The nurse should monitor for which cardiac side effect?

Accepted Answer

QT prolongation

Answer

Ondansetron (a 5-HT3 antagonist) can cause QT interval prolongation, increasing the risk of serious dysrhythmias such as torsades de pointes.

Question 5

When educating a patient about neutropenia precautions, which food should the nurse instruct the patient to avoid?

Accepted Answer

Raw sushi

Answer

Raw or undercooked seafood poses a high risk of bacterial contamination and should be avoided by neutropenic patients who cannot mount an adequate immune response.

OCN Exam Practice Test

OCN Exam Practice Test

OCN OCN General 2