OCN Radiation Therapy Nursing 3

Question 1

A patient who received chest wall and axillary radiation for breast cancer develops swelling, heaviness, and tightness of the ipsilateral arm. Which condition is this?

Accepted Answer

Lymphedema

Answer

Lymphedema results from lymphatic vessel damage caused by radiation and/or surgery, impairing lymph drainage and causing fluid accumulation in the affected limb.

Question 2

What is radiation recall dermatitis?

Accepted Answer

An inflammatory skin reaction in a previously irradiated area triggered by certain chemotherapy agents

Answer

Radiation recall is an inflammatory reaction in previously irradiated skin triggered by certain chemotherapy drugs (such as anthracyclines or taxanes) administered after radiation therapy.

Question 3

A patient receiving radiation therapy to the salivary glands develops severe dry mouth. What is this condition called, and which intervention is most appropriate?

Accepted Answer

Xerostomia; encourage frequent sips of water, use saliva substitutes, and good oral hygiene

Answer

Xerostomia (dry mouth) from salivary gland irradiation is managed with saliva substitutes, frequent water intake, and meticulous oral hygiene to prevent dental caries and infection.

Question 4

Total body irradiation (TBI) is most commonly used as a preparative regimen for which procedure?

Accepted Answer

Hematopoietic stem cell transplantation (HSCT)

Answer

TBI is used as part of the conditioning regimen before hematopoietic stem cell transplantation to eradicate residual malignancy and suppress the immune system to prevent graft rejection.

Question 5

Which of the following is a late effect of radiation therapy to the pelvis that a nurse should include in patient education?

Accepted Answer

Vaginal stenosis and sexual dysfunction

Answer

Vaginal stenosis is a late effect of pelvic radiation that can cause sexual dysfunction; patients should be taught to use vaginal dilators and lubricants to minimize this complication.

OCN Exam Practice Test

OCN Exam Practice Test

OCN Radiation Therapy Nursing 3