Test Code BA48F Bile Acids, Bowel Dysfunction, 48 Hour, Feces
Useful For
Aids to evaluate patients suspected of having irritable bowel syndrome-diarrhea (IBS-D) symptoms due to bile acid malabsorption
Reporting Name
Bile Acids, Bowel Dysfunc, 48 Hr, FSpecimen Type
FecalFor MBMC Outpatients: Distribute 24/48/72 hour large collection kit
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
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.
Specimen Minimum Volume
5 g
Specimen Stability Information
Specimen Type | Temperature | Time | Special Container |
---|---|---|---|
Fecal | Frozen | 30 days |
Reference Values
≥ to 18 years:
Sum of cholic acid and chenodeoxycholic acid ≤9.7%
Total bile acids ≤2619 mcmoles/48 hours
Reference values have not been established for patients who are <18 years of age
Performing Laboratory
Mayo Clinic Laboratories in RochesterTest Classification
This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.CPT Code Information
82542
LOINC Code Information
Test ID | Test Order Name | Order LOINC Value |
---|---|---|
BA48F | Bile Acids, Bowel Dysfunc, 48 Hr, F | 93338-2 |
Result ID | Test Result Name | Result LOINC Value |
---|---|---|
36968 | Bile Acids, % CDCA + CA, F | 93337-4 |
36969 | Total Bile Acids, F | 93336-6 |
610285 | Stool Weight | 30078-0 |
Method Name
Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)
Special Instructions
Forms
If not ordering electronically, complete, print, and send a Gastroenterology and Hepatology Test Request (T728) with the specimen.
Testing Algorithm
Day(s) Performed
Wednesday