A 62-year-old client with a history of colorectal cancer presents to the clinic reporting increasing fatigue, shortness of breath on exertion, and intermittent dizziness over the past several weeks. The client also states that bowel movements have become darker in color recently. Laboratory results reveal hemoglobin of 8.9 g/dL and hematocrit of 27%. Which interpretation by the nurse is most appropriate?

Choice A reason: Standard maintenance hemodialysis is typically not performed daily in a clinical setting. While some home hemodialysis programs offer more frequent, shorter sessions, the conventional schedule for the vast majority of patients in outpatient centers involves three sessions per week. Daily dialysis is usually reserved for acute, unstable patients in intensive care units.

Choice B reason: The description of a catheter inserted into the abdomen refers to peritoneal dialysis, not hemodialysis. Hemodialysis requires vascular access, such as an arteriovenous fistula, graft, or a central venous catheter in the chest or neck. Peritoneal dialysis uses the peritoneal membrane as the filter, whereas hemodialysis uses an external artificial kidney machine.

Choice C reason: In the United States and most clinical protocols, the standard frequency for outpatient hemodialysis is three times per week, with each session lasting approximately 3 to 5 hours. This schedule is designed to sufficiently remove metabolic waste products and excess fluid that accumulate when the kidneys have reached end-stage failure.

Choice D reason: End-stage renal disease (ESRD) is characterized by permanent, irreversible kidney damage. Unlike acute kidney injury, where the kidneys may eventually heal and resume function, ESRD requires lifelong renal replacement therapy (dialysis) or a kidney transplant. Teaching the client that the kidneys will "heal" provides false hope and inaccurate medical information.

Choice A reason: The FOBT only detects the presence of blood in the stool; it is not diagnostic for cancer. While it is a screening tool for colorectal cancer, bleeding can be caused by many other conditions, such as hemorrhoids, ulcers, or inflammatory bowel disease. A positive result necessitates a follow-up colonoscopy for a definitive diagnosis.

Choice B reason: Fecal occult blood testing is a screening for active bleeding, not a genetic screen. Genetic risk for colorectal cancer is determined through blood tests that look for specific mutations, such as those found in Lynch syndrome or familial adenomatous polyposis (FAP), or through a thorough review of family history.

Choice C reason: Red meat contains animal hemoglobin, and NSAIDs (like aspirin or ibuprofen) can cause minor gastrointestinal irritation and bleeding. Both can lead to a false-positive result on a guaiac-based FOBT. Clients are instructed to avoid these for 48 to 72 hours before the test to ensure the accuracy of the screening.

Choice D reason: A virtual colonoscopy (CT colonography) is an alternative screening method, but it does not replace the need for routine non-invasive screening like the FOBT for many patients. Each screening modality has different indications and intervals. Suggesting the client forego the FOBT because of another test is inappropriate medical advice.