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|Performed by||National Medical Service via Quest|
|Patient Preparation||Any pancreatic enzyme supplements should be discontinued for 5 days before testing of an adult, for 1 day in a child with cystic fibrosis.
An 8 hour fast before specimen collection is preferred.
|Collection Instructions||The patient should be given Bentiromide after an overnight fast (500 mg for an adult or 14 mg/kg for a child) and the urine collected for the next 6 hours.
Refrigerate container during collection.
|Container type||24 hour urine collection container
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|Amount to Collect||Entire urine output over 6 hour period|
|Sample type||6 hour urine|
|Preferred volume||10 mL urine|
|Min. Volume||1 mL urine|
|UCSF Rejection Criteria||Container not refrigerated during collection.|
|Processing notes||Record total urine volume. Refrigerate sample. Order Quest # 4927X|
|Normal range||> 250 mg (50%) excretion|
|Additional information||PABA is the end-product measured in the Bentiromide test for pancreatic insufficiency. This test is NOT accurate if the creatinine exceeds 2.0 mg/dL, and a false-negative result may be obtained due to drug and/or dietary interference.|
|Last Updated||3/24/2013 7:31:21 PM|
If you have additional questions regarding this test, please call: 415-353-1667