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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 are important for digestion and can reflect liver function or bile flow issues.

Quick summary

["Bile acids help break down fats; abnormal levels may signal liver or gallbladder problems."]

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

Key facts at a glance

LOINC
57085-3
Short code
OA NB scn pnl DBS
Synonyms
OA NB scn pnl DBS
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

Why This Test Might Be Ordered

Your doctor may recommend this test if you have symptoms like jaundice (yellowing skin/eyes), unexplained fatigue, abdominal pain, or if they suspect liver disease, gallbladder issues, or bile duct blockage. It can also help diagnose conditions like primary biliary cholangitis or cirrhosis.

What to Expect Before the Test

No special preparation is usually needed, but you may be asked to fast for 8–12 hours before the test to ensure accurate results. Bring any medications you’re taking, as some may affect bile acid levels.

What the Results Mean

Elevated levels may indicate liver disease, bile duct obstruction, or certain metabolic disorders. Lower-than-expected levels could suggest malabsorption or rare genetic conditions. Your doctor will interpret results in the context of your symptoms and medical history.

Common Conditions Linked to Bile Acid Levels

Abnormal bile acid results can signal conditions like cholestasis (blocked bile flow), hepatitis, or metabolic syndromes. They may also help diagnose rare genetic disorders affecting bile production or metabolism.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance: Bile Acids as a Diagnostic Marker

Short name

Total bile acids

Frequently asked questions

Will I need to avoid certain foods before this test?
Yes, fasting for 8–12 hours before the test is often recommended to get accurate results. Avoid fatty foods, as they can temporarily raise bile acid levels. If you’re unsure, ask your doctor or lab technician for specific instructions.
Can medications affect my bile acid test results?
Some medications—like cholesterol-lowering drugs (e.g., statins), antibiotics, or certain diuretics—may influence bile acid levels. Always inform your doctor about all medications, supplements, or herbal products you’re taking before the test.
How long will it take to get my results back?
Results are typically available within 1–3 business days, depending on your lab’s processing time. Your doctor will discuss them with you during your follow-up visit, so don’t worry about interpreting them yourself unless instructed.
  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