stool for occult blood test

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stool for occult blood test (stool for OB)

a stool test performed as part of every routine physical examination to detect the presence of occult blood in the GI tract. Presence of OB in the stool may indicate benign and malignant GI tumors, ulcers, inflammatory bowel disease, arteriovenous malformation, diverticulosis, and hematobilia.