Bile Acids, Fractionated and Total
Test Summary
Bile acids are formed in the liver, from cholesterol, stored and concentrated in the gallbladder, and excreted into the intestines in response to food. Elevated concentrations often suggest impaired hepatic clearance due to liver disease. Patients with intestinal malabsorption and metabolic disorders such as Gilbert's disease do not exhibit elevated bile acids concentrations.
Aliases
- N/A
Specimen Collection
Special Instructions
N/A
Preferred Specimen
1 mL serum
Minimum Volume
0.2 mL
Instructions
Collect blood in a red-top (no gel), or SST tube. After clot formation centrifuge sample and pour off serum into transport tube. Store sample refrigerated or frozen.
Patient Preparation
Overnight fasting is preferred
Storage
Plastic screw-cap vial
Transport Temperature
Room temperature
Specimen Stability
- Room temperature: 14 days
- Refrigerated: 21 days
- Frozen: 30 days
Limitations
N/A
Other Acceptable Specimens
N/A
Unacceptable Specimens
N/A
Order Code
BILEF
EPIC (Premier) Code
LAB3539
Includes
Cholic Acid
Deoxycholic Acid
Chenodeoxycholic Acid
Total Bile Acids
Deoxycholic Acid
Chenodeoxycholic Acid
Total Bile Acids
CPT Code
- 82542
Billing Code
- 670588
CPT Statement
Methodology
Chromatography/Mass Spectrometry
FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by the U.S. Food and Drug Administration. The FDA has determined that such clearance or approval is not necessary. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
Physician Attestation of Informed Consent
N/A
Testing Laboratory
Quest Diagnostics Nichols Institute
33608 Ortega Highway
San Juan Capistrano CA, 92675
33608 Ortega Highway
San Juan Capistrano CA, 92675
Department
Reference Testing
Reference Range
| Cholic Acid | ≤1.8 umol/L |
| Deoxycholic Acid | ≤2.4 umol/L |
| Chenodeoxycholic Acid | ≤3.1 umol/L |
| Total Bile Acids | ≤6.8 umol/L |
Setup Schedule / Expected Turnaround Time
Sunday - Friday; Report available: 4 - 6 days
Specimen Collection
Special Instructions
N/A
Preferred Specimen
1 mL serum
Minimum Volume
0.2 mL
Instructions
Collect blood in a red-top (no gel), or SST tube. After clot formation centrifuge sample and pour off serum into transport tube. Store sample refrigerated or frozen.
Patient Preparation
Overnight fasting is preferred
Storage
Plastic screw-cap vial
Transport Temperature
Room temperature
Specimen Stability
- Room temperature: 14 days
- Refrigerated: 21 days
- Frozen: 30 days
Limitations
N/A
Other Acceptable Specimens
N/A
Unacceptable Specimens
N/A
Result Information
Methodology
Chromatography/Mass Spectrometry
Testing Laboratory
N/A
Reference Range
| Cholic Acid | ≤1.8 umol/L |
| Deoxycholic Acid | ≤2.4 umol/L |
| Chenodeoxycholic Acid | ≤3.1 umol/L |
| Total Bile Acids | ≤6.8 umol/L |
Setup Schedule / Expected Turnaround Time
Sunday - Friday; Report available: 4 - 6 days