Test Catalog

Test ID: BA48F    
Bile Acids, Bowel Dysfunction, 48 Hour, Feces

Testing Algorithm Delineates situations when tests are added to the initial order. This includes reflex and additional tests.

Specimen Type Describes the specimen type validated for testing


Ordering Guidance

This test is for evaluation of bowel dysfunction.


For evaluation of hepatobiliary dysfunction, order BILEA / Bile Acids, Total, Serum.

For evaluation of patients treated with urso or cholate, order BAFS / Bile Acids, Fractionated and Total, Serum.

For evaluation of inborn errors of metabolism, order BAIPD / Bile Acids for Peroxisomal Disorders, Serum.

Specimen Required Defines the optimal specimen required to perform the test and the preferred volume to complete testing

Patient Preparation:

For 3 days prior to and during the collection period:

1. Patient should be on a fat-controlled diet (100-150 g fat per day)

2. No laxatives (particularly mineral oil and castor oil)

3. No synthetic fat substitutes (eg, Olestra) or fat-blocking nutritional supplements

Supplies: Stool Containers - 24, 48, 72 Hours Kit (T291)

Collection Container/Tube: Stool container (T291); complies with shipping requirements, do not use other containers

Specimen Volume: Entire 48-hour collection

Collection Instructions:

1. Do not use other containers.

2. All containers must be sent together.

3. The entire collection must contain at least 5 g of feces.

4. The number of containers sent should be indicated on the labels (1 of 4, for example).

Additional Information:

1. Patient may store sample at refrigerate temperature during collection period.

2. Barium interferes with test procedure; a waiting period of 48 hours before stool collection analysis is recommended.

Special Instructions Library of PDFs including pertinent information and forms related to the test


If not ordering electronically, complete, print, and send a Gastroenterology and Hepatology Client Test Request (T728) with the specimen.

Specimen Minimum Volume Defines the amount of sample necessary to provide a clinically relevant result as determined by the Testing Laboratory

5 g

Reject Due To Identifies specimen types and conditions that may cause the specimen to be rejected

All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.

Specimen Stability Information Provides a description of the temperatures required to transport a specimen to the performing laboratory, alternate acceptable temperatures are also included

Specimen TypeTemperatureTimeSpecial Container
FecalFrozen30 days