Serum or Plasma Substance Concentration (Bromocresol Green Dye Binding)
This test measures how bromocresol green dye binds to proteins in your blood, often used to assess liver function or protein synthesis.
["This test helps evaluate liver health and protein production in your bloodstream."]
Key facts at a glance
- LOINC
- 33328-6
- Short code
- WNV IgG Titr CSF
- Synonyms
- WNV IgG Titr CSF
- Category
- chemistry
- Sample
- csf
- Container
- Sterile tube
- Units
- N/A
- Ref low
- 8
- Ref high
- 61
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- CPT
- 82977
- SNOMED
- 3110003
- Specimen volume
- 1-2 mL
- Stability
- Immediate analysis required, Refrigerated: 1h
- Hemolysis max
- 200
- TAT
- 4–24 hours
- Order
- routine
What This Test Measures
The bromocresol green (BCG) dye binding test evaluates the concentration of certain proteins in your blood, specifically those that bind to the dye. This process reflects overall protein levels and liver function, as the liver plays a key role in synthesizing proteins. The test may also indirectly assess albumin levels, which are critical for maintaining fluid balance and supporting various bodily functions.
Why It’s Done
Doctors may order this test to monitor liver disease, detect protein deficiencies, or assess how well your body produces proteins. It can also be part of a broader evaluation for conditions affecting protein metabolism or liver function.
Sample Collection and Preparation
A blood sample is drawn from a vein, typically in the arm. The sample is then processed to separate serum or plasma, which is sent to the lab for testing. The dye binding method involves mixing the sample with bromocresol green and measuring how much dye binds to proteins.
Common Uses and Conditions
This test is often used in conjunction with other liver function tests, such as albumin levels, to diagnose or monitor conditions like cirrhosis, liver failure, or malnutrition. It may also be part of a screening for conditions affecting protein synthesis.
Reference range
Adult males: 8-61 U/L; Adult females: 5-36 U/LN/A
No special preparation required. Avoid fatty meals before the test if possible.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Low results may indicate liver disease, malnutrition, or conditions that impair protein production, such as kidney disease or certain cancers. High results are less common but could suggest conditions affecting protein binding or specific metabolic disorders. Always discuss results with your healthcare provider, as they will interpret them in the context of your overall health and medical history.
Short name
BCG Dye Binding Test
Frequently asked questions
What does a low result mean?
How is this test different from other protein tests?
Can this test be done at home?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
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.
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