Bile Acids, Fractionated and Total, Pregnancy

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Test Name: Bile Acids, Fractionated and Total, Pregnancy
Reference Lab: QNI
Test Code: 19546
Shipping Temp: Refrigerated: 21 days
Specimen Type: 1 mL serum
TAT: 4-6 days
CPT Code: 82542
Cost: _
Additional Comments: _
FDA Approved Test: YES_ NO_ LDT_
Medical Director/Pathologist: approved by
Billing Completed by_ Date_ Time_

Test Code

QNI FLEXI 19546

Quest Code

19546

Alias/See Also

Bile Acids, Fractionated and Total, Pregnancy
19546

CPT Codes
82542

Includes

Cholic Acid
Deoxycholic Acid
Chenodeoxycholic Acid
Total Bile Acids

Preferred Specimen

1 mL serum

Patient Preparation
Overnight fasting is preferred

Minimum Volume

0.5 mL

Instructions

Collect blood in a red top or SST® tube. After clot formation centrifuge sample and pour off serum into a transport tube. Store sample refrigerated or frozen.

Transport Temperature

Room temperature

Specimen Stability

Room temperature: 14 days
Refrigerated: 21 days
Frozen: 30 days

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 FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.

Setup Schedule

Night

Reference Range

Cholic Acid	≤2.8 umol/L
Deoxycholic Acid	≤2.3 umol/L
Chenodeoxycholic Acid	≤3.9 umol/L
Total Bile Acids	≤8.3 umol/L

Clinical Significance

Intrahepatic cholestasis of pregnancy requires rapid TAT of results. Samples for this test will be run straight and on dilution to improve TAT.

Performing Laboratory
Quest Diagnostics Nichols Institute
33608 Ortega Highway
San Juan Capistrano, CA 92690-6130

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.