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Hepatic Enzyme Profile with Bromocresol Green (BCG) Method

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

This test measures certain liver-related substances in your blood using a specific chemical reaction to assess liver function.

Quick summary

["A simple blood test to check how well your liver is working."]

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

Key facts at a glance

LOINC
54048-4
Short code
HEDIS 2009 CWP-D
Synonyms
HEDIS 2009 CWP-D
Category
coagulation
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 This Test Measures

The test detects levels of enzymes and other substances that help identify liver health. It may include measurements of proteins or other markers affected by liver function, analyzed through a bromocresol green-based method.

Why It’s Done

Your healthcare provider may order this test if you have symptoms like fatigue, jaundice (yellow skin), or unexplained abdominal pain, or if you have conditions like hepatitis, cirrhosis, or alcohol-related liver damage.

What to Expect Before the Test

No special preparation is needed, but avoid heavy meals 2 hours before the blood draw. Stay hydrated but inform your provider about any medications, especially those affecting liver function.

What the Results Mean

Results help determine if your liver is functioning properly or if there are signs of damage. Elevated levels may suggest liver disease, while normal results indicate healthy liver function.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

BCG Hepatic Enzyme Test

Frequently asked questions

Will this test show early signs of liver problems?
Yes, this test can help detect early changes in liver function, though it may not catch every condition. Other tests may be needed for a full evaluation.
Can I eat before the blood test?
Avoid heavy meals 2 hours before your blood draw. Light snacks are fine, but clear liquids may be allowed depending on your provider’s instructions.
Does this test require fasting?
No fasting is required for this test, but your provider may recommend it for other related liver tests. Always follow their specific instructions.
  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