OCN Radiation Therapy Nursing 2

Question 1

A patient receiving radiation therapy to the head and neck region develops painful ulcerations of the oral mucosa. Which condition does this describe?

Accepted Answer

Mucositis

Answer

Mucositis is inflammation and ulceration of the mucosal lining caused by radiation damage to rapidly dividing epithelial cells in the mouth and throat.

Question 2

Which CBC finding is most important to monitor in a patient receiving pelvic radiation therapy?

Accepted Answer

Decreased hemoglobin, white blood cells, and platelets

Answer

Pelvic radiation affects the bone marrow in pelvic bones, leading to myelosuppression with decreases in red cells, white cells, and platelets.

Question 3

A patient who completed chest radiation 6 weeks ago presents with fever, dry cough, and dyspnea. Which radiation complication is most likely?

Accepted Answer

Radiation pneumonitis

Answer

Radiation pneumonitis typically occurs 1–3 months after chest irradiation and presents with fever, dry cough, and dyspnea due to inflammatory lung damage.

Question 4

A nurse is caring for a patient with a low-dose rate (LDR) cervical brachytherapy implant. Which safety precaution is most important?

Accepted Answer

Limit time near the patient and keep distance; pregnant visitors and children should not visit

Answer

Radiation safety for LDR brachytherapy requires limiting time and maximizing distance from the radioactive source; pregnant women and children are especially restricted to protect them from radiation exposure.

Question 5

What is the most appropriate dietary recommendation for a patient experiencing radiation-induced diarrhea from pelvic irradiation?

Accepted Answer

Low-residue, low-fat diet avoiding raw fruits, vegetables, and dairy

Answer

A low-residue, low-fat diet reduces bowel stimulation and stool frequency, easing radiation-induced diarrhea by decreasing the bulk that passes through the irritated bowel.

OCN Exam Practice Test

OCN Exam Practice Test

OCN Radiation Therapy Nursing 2