title: Vitamin B12 absorption in patients with ileal conduits.
abstract: The absorption of vitamin B12 was assessed using the 58Co-absorption test (Schilling test) in 39 patients in whom ileal loops had been used as urinary diversion after excision of the bladder for transitional cell carcinoma. 29% of the patients were found to absorb less than 12% of the offered dose of labelled vitamin B12 after excluding gastric-mediated malabsorption by the modified Schilling test. Examination of haemoglobin, MCV or vitamin B12 in the peripheral blood gave unreliable indications of the absorptive ability of these patients.
mesh_terms: D000328:Adult; D000368:Aged; D001806:Blood Urea Nitrogen; D005260:Female; D006400:Hematocrit; D006452:Hemoglobinometry; D006801:Humans; D007082:Ileum / Q000378:metabolism / Q000601:surgery; D007408:Intestinal Absorption; D008297:Male; D008875:Middle Aged; D009362:Neoplasm Metastasis; D012546:Schilling Test; D001749:Urinary Bladder Neoplasms / Q000601:surgery; D014547:Urinary Diversion / Q000009:adverse effects*; D014805:Vitamin B 12 / Q000097:blood / Q000378:metabolism*
chemical_list: D014805:Vitamin B 12