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Serum or Plasma Substance Concentration (Bromocresol Green Dye Binding)

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

This test measures how your blood interacts with a specific dye (bromocresol green) to assess certain liver or bile function. It may also be used to evaluate protein binding capacity or metabolic health.

Quick summary

["This test helps check liver function or protein binding in your blood."]

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

Key facts at a glance

LOINC
7648-9
Short code
False ragweed BasoBnd Ab Qn
Synonyms
False ragweed BasoBnd Ab Qn
Category
chemistry
Sample
whole-blood
Container
Lavender-top (EDTA)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
lhr
Specimen volume
3 mL
Stability
Room temperature: 4h, Refrigerated: 24h
Hemolysis max
0
Lipemia max
0
Icterus max
0
TAT
4–24 hours
Order
routine

What This Test Measures

The bromocresol green dye binding test evaluates how well your liver can process and bind certain substances. When the dye binds to proteins in your blood, it changes color, which helps doctors determine if your liver is functioning properly or if there are issues with protein metabolism.

Why It’s Done

Doctors may order this test to investigate symptoms like jaundice (yellowing of skin/eyes), unexplained fatigue, or liver-related conditions. It can also help assess protein levels or metabolic disorders.

Sample Collection

A blood sample is drawn from a vein, typically in your arm. The sample is collected in a tube and sent to a lab for testing.

What to Expect Before or After

No special preparation is usually needed, but inform your doctor about medications or conditions that might affect results. After drawing blood, you may feel slight discomfort, but it’s generally quick and well-tolerated.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

BCG Dye Binding Test

Frequently asked questions

What causes abnormal results in this test?
Abnormal results could be due to liver disease (such as cirrhosis or hepatitis), certain genetic disorders affecting protein metabolism, or conditions that alter blood protein levels. Always consult your doctor for a full evaluation.
How long does it take to get results?
Results are typically available within 1 to 3 business days, depending on lab processing times. Your doctor will contact you once they are ready to discuss the findings.
Can I eat or drink before this test?
No special diet is required, but inform your doctor about any medications or supplements you’re taking, as they may affect 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