A patient admitted with fatigue, dyspnea, and a hemoglobin level of 8.6 mg/dL tells the nurse that he occasionally has dark, smelly stools but they "go away" in a few days. The nurse would conduct additional assessment for which most common cause of this history?
1. Inability to absorb protein
2. Lower gastrointestinal bleed
3. Chronic gastrointestinal bleed
4. Upper gastrointestinal bleed
Answer: 3
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