A nurse is reinforcing teaching with a client who will collect stool specimens at home for fecal occult blood testing. Which of the following foods should the nurse instruct the client to avoid for 3 days before the test?

Rationale: A. Milk: Milk does not interfere with fecal occult blood testing and does not contain substances that cause false-positive results. It can be safely consumed prior to the test without affecting the accuracy of the results. B. Whole wheat bread: Whole wheat bread is high in fiber, which is actually beneficial when preparing for a fecal occult blood test. It helps promote regular bowel movements but does not lead to false-positive results. C. Red meat: Red meat contains heme, a form of animal blood, which can cause false-positive results on guaiac-based fecal occult blood tests. Avoiding red meat for at least 3 days prior to the test helps reduce the risk of inaccurate results. D. Almonds: Almonds and other nuts do not contain components that interfere with fecal occult blood testing. They are not known to cause false-positive or false-negative results and are safe to consume before the test.