Fecal occult blood tests
is a topic covered in the Guide to Diagnostic Tests
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Fecal occult blood tests (FOBT), stool
Dietary (meat, fish, turnips, horseradish) and medication (aspirin, nonsteroidal anti-inflammatory drugs) restrictions are often recommended to reduce false positive results, but available evidence does not suggest large effect on positivity rates in non-rehydrated testing.
To avoid false-negatives, patients should avoid taking vitamin C.
Patient collects two specimens from three consecutive bowel movements.
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McPhee, Stephen J., et al. "Fecal Occult Blood Tests." Guide to Diagnostic Tests, 7th ed., McGraw-Hill Education, 2017. Medicine Central, im.unboundmedicine.com/medicine/view/GDT/619141/all/Fecal_occult_blood_tests.
McPhee SJ, Lu CM, Nicoll D. Fecal occult blood tests. Guide to Diagnostic Tests. 7th ed. McGraw-Hill Education; 2017. https://im.unboundmedicine.com/medicine/view/GDT/619141/all/Fecal_occult_blood_tests. Accessed October 21, 2019.
McPhee, S. J., Lu, C. M., & Nicoll, D. (2017). Fecal occult blood tests. In Guide to Diagnostic Tests. Available from https://im.unboundmedicine.com/medicine/view/GDT/619141/all/Fecal_occult_blood_tests
McPhee SJ, Lu CM, Nicoll D. Fecal Occult Blood Tests [Internet]. In: Guide to Diagnostic Tests. McGraw-Hill Education; 2017. [cited 2019 October 21]. Available from: https://im.unboundmedicine.com/medicine/view/GDT/619141/all/Fecal_occult_blood_tests.
TY - ELEC
T1 - Fecal occult blood tests
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A1 - McPhee,Stephen J,
AU - Lu,Chuanyi Mark,
AU - Nicoll,Diana,
BT - Guide to Diagnostic Tests
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PB - McGraw-Hill Education
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DB - Medicine Central
DP - Unbound Medicine