Serum/Plasma Substance Concentration by Immunoassay (Bromocresol Green)
This test measures the concentration of a specific protein or substance in your blood using a bromocresol green-based immunoassay method. It helps assess levels of certain substances that may be linked to health conditions.
["This test provides important insights into your blood chemistry, often used for monitoring or diagnosing conditions affecting protein levels."]
Key facts at a glance
- LOINC
- 5348-8
- Short code
- ENA Scl70 Ab Ser Ql IA
- Synonyms
- ENA Scl70 Ab Ser Ql IA
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- ia
- 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 substance (often a protein or marker) in your serum or plasma. Bromocresol green is used to quantify the concentration through a colorimetric reaction that changes based on the substance’s presence. This method is sensitive and commonly used for detecting substances like certain enzymes, hormones, or antibodies.
Why It’s Done
Your healthcare provider may order this test to evaluate conditions such as liver function, kidney function, or to screen for certain metabolic or inflammatory disorders. It can also be used in research or specialized diagnostic settings where precise protein concentration measurements are required.
Sample Collection and Preparation
A blood sample is drawn from a vein, typically in the arm. The blood is then processed to separate serum (liquid part after clotting) or plasma (liquid part after anticoagulant use). This sample is sent to a lab for analysis using the bromocresol green immunoassay method.
Common Uses and Conditions
This test is often used in conjunction with other lab tests to diagnose or monitor diseases like liver disease, certain infections, or genetic disorders. It may also be part of routine screening or follow-up care for patients with known conditions affecting protein metabolism.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Abnormal results may indicate underlying health issues, such as abnormal protein synthesis, degradation, or transport. For example, elevated levels might suggest liver disease, while low levels could point to conditions affecting protein production or kidney function. Always discuss results with your healthcare provider to understand their implications for your specific situation.
Short name
BCG Immunoassay (Serum/Plasma)
Frequently asked questions
What does a high or low result mean?
How often should I get this test?
Can I prepare for 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