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Serum/plasma concentration of bile acids (total)

Published: August 9, 2026Updated: August 16, 2026

This test measures the total amount of bile acids in your blood, which helps assess liver function and bile flow.

Quick summary

["Bile acids support digestion and may indicate liver or gallbladder issues."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
79630-0
Short code
R- + S-BAIB + D- + L-ser patt SerPl-Imp
Synonyms
R- + S-BAIB + D- + L-ser patt SerPl-Imp
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

What Is Bile Acid Testing For?

Bile acids are produced by the liver and stored in the gallbladder. They play a key role in breaking down fats in the digestive tract. Elevated levels in the blood can signal problems such as liver disease, bile duct blockages, or certain metabolic disorders.

Why Might Your Doctor Order This Test?

Your doctor may recommend this test if you have symptoms like jaundice (yellowing of the skin or eyes), unexplained fatigue, abdominal pain, or if they suspect conditions like primary biliary cholangitis, cirrhosis, or bile duct obstructions.

How Is the Test Performed?

A blood sample is drawn from a vein, usually in your arm. The sample is then sent to a lab for analysis. The test measures the total concentration of bile acids in serum or plasma.

What Are Common Causes of Abnormal Results?

High levels of bile acids may be linked to liver diseases, such as hepatitis or cirrhosis, gallbladder disorders, or conditions that affect bile flow. Low levels might suggest liver dysfunction or other metabolic issues.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Total Bile Acids

Frequently asked questions

How long does it take to get results?
Results are typically available within 1 to 3 business days, depending on your lab’s processing time.
What does it mean if my bile acid levels are high?
High bile acid levels may indicate problems with bile flow, such as gallbladder disease, liver disease, or certain metabolic disorders. Your doctor will discuss these findings with you and may recommend further testing or treatment.
Can diet affect bile acid test results?
Yes, certain foods or medications can influence bile acid levels. For example, high-fat meals may temporarily increase bile acid production. If instructed, your doctor may advise fasting before the test to ensure accurate results.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy