A positive fecal occult blood test indicates GI bleeding. Which of the following could cause it?

Prepare for the Alimentary and Digestive System Test. Utilize flashcards and multiple-choice questions, with hints and explanations for each question. Ace your exam with confidence!

Multiple Choice

A positive fecal occult blood test indicates GI bleeding. Which of the following could cause it?

Explanation:
A positive fecal occult blood test means there is hidden blood in the stool, coming from the GI tract. Ulcers damage the lining of the stomach or upper small intestine and can erode blood vessels, causing small amounts of bleeding that aren’t visible but can be detected by the test. The other choices involve non-GI systems (joints, brain, lungs) and aren’t sources of GI bleeding, so they wouldn’t explain a positive result.

A positive fecal occult blood test means there is hidden blood in the stool, coming from the GI tract. Ulcers damage the lining of the stomach or upper small intestine and can erode blood vessels, causing small amounts of bleeding that aren’t visible but can be detected by the test. The other choices involve non-GI systems (joints, brain, lungs) and aren’t sources of GI bleeding, so they wouldn’t explain a positive result.

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