External-beam radiation is planned for a patient with endometrial cancer. The nurse teaches the patient that an important measure to prevent complications from the effects of the radiation is to
A. Test all stools for the presence of blood
B. Inspect the mouth and throat daily for the appearance of thrush
C. Perform perianal care with sitz baths and meticulous cleaning
D. Maintain a high-residue, high-fat diet
Correct Answer: C. Perform perianal care with sitz baths and meticulous cleaning
Option C: Radiation to the abdomen will affect organs in the radiation path, such as the bowel, and cause frequent diarrhea.
Options A and B: Stools are likely to have occult blood from the inflammation associated with radiation, so routine testing of stools for blood is not indicated. Radiation to the abdomen will not cause stomatitis.
Option D: A low-residue diet is recommended to avoid irritation of the bowel when patients receive abdominal radiation.
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