Skip to content

Serum or Plasma Bromocresol Green Protein Binding Index

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

This test measures how proteins in your blood bind to bromocresol green dye, which helps assess liver function and protein synthesis.

Quick summary

["This test helps doctors check if your liver is working properly or if protein levels are affected."]

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

Key facts at a glance

LOINC
22367-7
Short code
FLUBV Ab Titr Ser
Synonyms
FLUBV Ab Titr Ser
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 Matters

Your liver produces proteins, including albumin, which are essential for maintaining fluid balance, wound healing, and other vital functions. This test evaluates how well your liver is producing these proteins by observing how bromocresol green binds to them. Abnormal results may indicate liver disease, malnutrition, or other conditions affecting protein synthesis.

What to Expect Before the Test

No special preparation is needed for this test. You may have a blood sample drawn from a vein in your arm, similar to other routine blood tests. If you’re taking medications or have certain health conditions, let your healthcare provider know before the test.

Common Causes of Abnormal Results

Low results might suggest liver disease, malnutrition, or kidney problems. High results could indicate dehydration or certain liver conditions. Always discuss your results with your doctor, as they’ll consider your full medical history and other tests.

What Your Results Mean

Your results will be compared to a general reference range, but exact values can vary by lab. Your doctor will interpret the results in the context of your overall health and other tests. Follow-up may include additional blood tests or liver function assessments.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

BCG Protein Binding Index

Frequently asked questions

What does a low or high protein binding index mean?
A low protein binding index may indicate reduced liver function, protein malnutrition, or conditions like cirrhosis or chronic liver disease. A high index could suggest mild dehydration or certain liver disorders. Your doctor will guide you on next steps based on your specific results.
How often should I get this test?
This test is often used as part of routine liver function checks or when monitoring conditions like liver disease, kidney problems, or malnutrition. Your doctor will determine how often you need it based on your health needs.
Can diet or medications affect this test?
Dietary changes or certain medications (like some antibiotics or diuretics) may indirectly affect protein levels or liver function, which could influence this test. Always inform your healthcare provider about all medications or supplements you’re taking.
  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