Inpatient and Outpatient Orderable

7AC4, Bile Acid Synthesis

Synonyms

  • 7(A)-HYDROXY-CHOLESTEN-3-ONE
  • 7ALPHAC4
  • 7C4
  • BILE ACID SYNTHESIS, SERUM (7AC4)
  • LAB11020

Cerner Name

7AC4, Bile Acid Synthesis, S

Clinical Info

This test should be used for screening for bile acid malabsorption, a condition in which excess bile acids are found in the stool that is one cause of chronic diarrhea.
This test should be used for screening for bile acid malabsorption, a condition in which excess bile acids are found in the stool that is one cause of chronic diarrhea.

Specimen Sources

Blood, Arterial Blood, Capillary Blood, Central Line Blood, Venous

Specimen Types

Blood

Specimen Volume

Container

Gold Top Tube

Collection Instructions

Specimen Type: Serum
Patient Preparation:
1. Patient must be fasting for at least 12 hours; fasting morning specimen is preferred.
2. Patient should not be taking bile acid sequestrants or statins.
Collection Container/Tube:
Preferred: Serum gel
Acceptable: Red top
Submission Container/Tube: Plastic vial
Specimen Volume: 1 mL
Collection Instructions:
1. Centrifuge and aliquot 1 mL of serum into plastic vial.
2. Send specimen frozen.
Specimen Minimum Volume: 0.5 mL
Specimen Stability Information:
Specimen TypeTemperatureTimeSpecial Container
SerumFrozen (preferred)90 days
 Refrigerated 72 hours
 Ambient 24 hours

Transport Instructions

Specimen Stability

Methodology

Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)TAT: 3 - 9 Days

Days Performed

Wednesday

Performing Laboratory

Mayo Clinic Laboratories in Rochester

CPT

82542

PDM

1759556

Only Orderable at Locations:

Orderable Everywhere

Results
Component Name Base Name Common Name External Name
7AC4, BILE ACID SYNTHESIS BILEACID7AC4 BILE ACID SYNTHESIS 7AC4 7AC4, Bile Acid Synthesis

Result Interpretation

?18 years: 2.5-63.2 ng/mL
Reference values have not been established for patients who are <18 years of age.

Forms
LAB11020 build edit