A nurse working in a hospital included abdominal assessment as part of patient assessment. In which patient would a nurse expect to find decreased or absent bowel sounds after listening for 5 minutes?

Choice A reason: A negative fecal occult blood test suggests no gastrointestinal bleeding, reducing the urgency for a colonoscopy. Black stool can result from benign causes like iron supplements, so immediate invasive procedures are not warranted without further history or symptoms.

Choice B reason: Assuming a false negative without evidence is premature. Fecal occult blood tests are reliable for detecting bleeding. Black stool may stem from non-bleeding causes like medications or diet, and suggesting a false result could unnecessarily alarm the patient.

Choice C reason: Stress does not directly cause black stool. While stress can exacerbate gastrointestinal issues, black stool is more likely due to dietary factors, medications, or rare conditions. This question is vague and less relevant to the symptom’s likely etiology.

Choice D reason: Iron supplements commonly cause black stool due to the oxidation of iron in the gastrointestinal tract, a benign side effect. Given the negative fecal occult blood test, asking about iron supplements is the most appropriate, targeted response to identify a likely cause.

Choice A reason: Endoscopy visualizes the gastrointestinal or urinary tract but is not the primary test for renal calculi. It may be used for ureteral stones but is invasive and less effective than imaging for initial diagnosis.

Choice B reason: Ultrasound can detect renal calculi, especially in pregnant patients or those avoiding radiation, but it is less sensitive than CT for small stones or precise location. It is not the preferred initial test in most cases.

Choice C reason: Chest radiography is irrelevant for renal calculi, as it images the thoracic cavity, not the kidneys or ureters. Flank pain from stones is unrelated to chest pathology, making this test inappropriate.

Choice D reason: Intravenous pyelogram (IVP) or CT scans are gold standards for diagnosing renal calculi. CT provides detailed images of stone size, location, and obstruction, while IVP assesses urinary tract function, making them the expected tests.