A client with acquired immune deficiency syndrome (AIDS) and Pneumocystis jiroveci pneumonia has a CD4+ T cell count of 200 cells/mm³ (20%). The client asks the nurse why they have these recurring massive infections. Which pathophysiologic mechanism should the nurse describe in response to this client's question?

Reference Range:
T-helper CD4 cells [600 to 1500 cells/mm³ (60 to 75%)]

Choice A reason: This is incorrect because consuming a high protein diet is not a recommended strategy to reduce risk factors for BPH. In fact, some studies have suggested that a high protein intake may increase the risk of BPH by stimulating the production of insulin-like growth factor-1 (IGF-1), which may promote prostate growth.

Choice B reason: This is incorrect because obtaining a prostate-specific antigen blood level test is not a preventive measure for BPH, but rather a diagnostic tool to detect prostate cancer or monitor its treatment. Prostate-specific antigen (PSA) is a protein produced by the prostate gland that can be elevated in both BPH and prostate cancer. However, PSA levels alone cannot distinguish between these two conditions and need to be interpreted along with other factors, such as age, race, family history, and digital rectal examination.

Choice C reason: This is incorrect because taking vitamin supplements is not a proven method to reduce risk factors for BPH. While some vitamins, such as vitamin D and vitamin E, may have some beneficial effects on prostate health, there is not enough evidence to support their use as preventive agents for BPH. Moreover, some vitamins, such as vitamin A and vitamin B6, may have adverse effects on prostate health and increase the risk of BPH or prostate cancer.

Choice D reason: This is correct because increasing physical activity is a helpful way to reduce risk factors for BPH. Physical activity can help maintain a healthy weight, lower blood pressure, improve blood circulation, reduce inflammation, and regulate hormone levels. All of these factors can contribute to preventing or delaying the development of BPH.

Choice A reason: Gastroccult positive emesis indicates the presence of blood in the vomit, which is a sign of a serious complication such as anastomotic leak, ulcer, or bleeding. The nurse should notify the physician and monitor the client's vital signs and hemoglobin level.

Choice B reason: Strong foul smelling flatus is a common side effect of BPD, which involves bypassing a large portion of the small intestine and creating a connection between the stomach and the colon. This results in malabsorption and bacterial overgrowth, which produce gas and odor.

Choice C reason: Complaint of poor night vision is a sign of vitamin A deficiency, which can occur after BPD due to reduced absorption of fat-soluble vitamins. The nurse should advise the client to take vitamin supplements and eat foods rich in vitamin A, such as carrots, sweet potatoes, and spinach.

Choice D reason: Loose bowel movements are another common side effect of BPD, which causes diarrhea and steatorrhea (fatty stools). The nurse should encourage the client to drink fluids with electrolytes and avoid foods that worsen diarrhea, such as greasy, spicy, or sugary foods.