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Serum or plasma mass 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 help digest fats and signal the liver to produce bile; abnormal levels may indicate liver or gallbladder issues."]

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

Key facts at a glance

LOINC
94612-9
Short code
Mp bovis Ag Tiss Ql ImStn
Synonyms
Mp bovis Ag Tiss Ql ImStn
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
immune-stain
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 play a key role in digestion and liver health. High levels may suggest conditions like cholestasis (blocked bile flow), liver disease, or bile duct obstruction. Low levels could indicate malabsorption or other gastrointestinal disorders.

Why Might Your Doctor Order This Test?

Your doctor may recommend this test if you have symptoms like jaundice (yellowing skin/eyes), itching, abdominal pain, or unexplained liver test abnormalities. It’s also used in diagnosing conditions like primary biliary cholangitis or after liver surgery.

How Is This Test Performed?

A blood sample is drawn from a vein, usually in your arm. The sample is then sent to a lab to measure total bile acids using a specialized analytical method. Results are reported as a mass concentration in micrograms per deciliter (mcg/dL).

What Do the Results Mean?

Results are interpreted based on clinical context and other lab findings. Elevated levels may indicate bile flow problems, while very low levels could signal malabsorption or liver dysfunction. Your doctor will discuss findings with you.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

Total bile acids

Frequently asked questions

How often will I need this test?
This test is typically ordered as needed for specific symptoms or conditions. Your doctor will determine how often it’s repeated based on your health status and treatment plan.
What should I do if I have a high or low result?
If your results are outside expected ranges, your doctor may recommend further testing, adjustments to medications, or additional treatments. Follow their guidance closely.
Can I eat or drink before this test?
For bile acid tests, fasting is often required. Follow your lab’s instructions regarding food and drink before your appointment 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