UCSF Navigation Bar

UCSF Departments of Pathology & Laboratory Medicine Home Page

Lab Manual for Moffitt-Long and Mount Zion

Lab Manual for SFGH

Internal Resources

Click here for more information about laboratory operations and procedures

If you have additional questions regarding this test, please call: 415-353-1667

Search Our Test Menu

Para-Aminobenzoic Acid

Item Value
Approval req'd? No
Available Stat? No
Test code MOLT (Order in Apex as 'Miscellaneous Outside Lab Test' using the complete test name above)
Performed by National Medical Service via Quest
Sendout? Yes
Method Solid phase
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

Click here for Urine Preservative Requirements
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
Units mg
Normal range > 250 mg (50%) excretion
Synonyms PABA
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.
CPT coding 84311-90
Last Updated 2/20/2014 3:11:44 PM
Entry Number 702
UCSF home page UCSF home page About UCSF Search UCSF UCSF Medical Center