7AC4, Bile Acid Synthesis, Serum

Test Code
36338

CPT Codes
82542

Preferred Specimen
1 mL serum

Patient Preparation
Patient must be fasting for at least 12 hours; fasting morning specimen is preferred.
Patient should not be taking bile acid sequestrants or statins.

Minimum Volume
0.5 mL

Transport Temperature
Frozen

Specimen Stability
Room temperature: 24 hours
Refrigerated: 72 hours
Frozen: 90 days

Methodology
Liquid Chromatography/Tandem Mass Spectrometry • Stable Isotope Dilution

Setup Schedule
Wednesday Morning Report available: 2 Days

Reference Range
> or = 18 years: 2.5-63.2 ng/mL

*Reference values have not been established for patients who are <18 years of age.



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.