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Serum or Plasma Substance Concentration (Bromocresol Green Dye Binding)

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

This test measures how a protein in your blood interacts with bromocresol green dye, which can help assess liver function or protein synthesis.

Quick summary

["This test helps doctors check liver health or protein levels in your blood."]

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

Key facts at a glance

LOINC
7098-7
Short code
White Ash BasoBnd Ab Qn
Synonyms
White Ash 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 (BCG) dye binding test evaluates the concentration of a specific protein in your blood that binds to this dye. This protein is often linked to liver function or overall protein synthesis in the body. The test may also reflect conditions affecting albumin or other globulins.

Why Your Doctor Might Order This Test

Your doctor may request this test if they suspect liver disease, protein malnutrition, or conditions affecting protein metabolism. It can also be used as part of a broader evaluation for conditions like cirrhosis, kidney disease, or certain metabolic disorders.

How the Test Works

Blood is drawn and processed to separate serum or plasma. The sample is then mixed with bromocresol green dye. The amount of dye bound by proteins in the sample is measured, reflecting the protein concentration. This process helps determine how well your body is producing or maintaining certain proteins.

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 if it involves blood collection. Avoid certain medications or supplements that could interfere with results, as advised by your healthcare provider.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Abnormal results may indicate liver disease (such as hepatitis or cirrhosis), protein deficiencies, or conditions affecting protein synthesis. Low levels could signal malnutrition or kidney problems, while high levels might suggest dehydration or certain genetic disorders. Always discuss results with your doctor for personalized interpretation.

Short name

BCG Dye Binding Assay

Frequently asked questions

What causes this test to be abnormal?
Abnormal results can occur due to liver disease, kidney problems, malnutrition, or conditions affecting protein metabolism. Your doctor will consider your medical history and other test results to determine the cause.
How long does it take to get results?
Results are typically available within 1–2 business days, depending on your lab’s processing time. Your healthcare provider will contact you with the final report.
Can I eat or drink before this test?
Follow your doctor’s instructions, but generally, fasting for 8–12 hours before blood collection is common for this type of test.
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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