Serum or Plasma Substance Concentration for a Specific Protein (Bromocresol Green Method)
This test measures the concentration of a specific protein in your blood using a dye-binding method. It may be used to assess protein levels related to liver function, kidney health, or other conditions.
["This test helps doctors check protein levels in your blood that could indicate health issues like liver disease or kidney problems."]
Key facts at a glance
- LOINC
- 12687-0
- Short code
- GH sp4 p chal SerPl-sCnc
- Synonyms
- GH sp4 p chal SerPl-sCnc
- 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
What This Test Measures
The test detects the presence and amount of a particular protein in your blood. Bromocresol green, a dye, binds to proteins, and the test measures how much dye is bound to determine protein concentration. This method is often used for general protein screening or specific protein monitoring.
Why It Might Be Ordered
Your healthcare provider may order this test if they suspect liver disease, kidney dysfunction, or other conditions affecting protein metabolism. It can also be part of routine monitoring for patients with chronic illnesses.
Sample Collection and Preparation
Blood is drawn from a vein, typically in your arm. The sample is collected in a tube that separates serum (liquid part) or plasma (blood without clotting factors) for testing. This test can be performed on either serum or plasma.
Preparation for the Test
No special preparation is needed for this test. You may continue with your normal activities, but avoid heavy meals or excessive alcohol before the blood draw if instructed by your doctor.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Changes in protein levels detected by this test can signal underlying health conditions. For example, elevated levels might indicate liver disease, while low levels could suggest kidney problems or malnutrition. This test is often used as a screening tool or to monitor existing conditions.
Short name
BCG Protein Assay (Serum/Plasma)
Frequently asked questions
What does a high or low result mean?
How often should I get this test?
Can I eat or drink before this test?
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