Serum or Plasma *Bromocresol Green Protein Fraction* (Invasion Depth/Trend)
This test measures the levels of specific protein fractions in your blood using the bromocresol green dye-binding method. It helps assess protein distribution and potential abnormalities in protein synthesis or breakdown over time.
["This test provides insights into protein metabolism and may help detect conditions affecting protein balance."]
Key facts at a glance
- LOINC
- 111981-7
- Short code
- Invasion depth Blry tr Endscpy
- Synonyms
- Invasion depth Blry tr Endscpy
- Category
- coagulation
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Ref low
- 0.8
- Ref high
- 1.2
- Critical range
- — – 5 N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- endoscopy
- CPT
- 85610
- SNOMED
- 396252006
- 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 bromocresol green method evaluates protein fractions by binding to specific proteins in your blood sample. This technique separates and quantifies different protein groups, including albumin and globulins, to identify trends in protein concentration or distribution.
Why It Matters in Your Health
Changes in protein fractions can signal underlying health issues, such as liver disease, kidney problems, malnutrition, or inflammatory conditions. Tracking trends over time helps healthcare providers monitor protein metabolism and adjust treatments accordingly.
How the Test Works
Your blood sample is processed to isolate protein fractions. The bromocresol green dye binds selectively to certain proteins, allowing for separation and measurement of their concentrations. Results are presented as trends or specific depth measurements of protein invasion.
Common Conditions Monitored
This test may be used to evaluate liver function, protein synthesis disorders, or systemic protein abnormalities. It can also help assess response to treatments affecting protein levels, such as those for kidney disease or chronic inflammation.
Reference range
INR: 0.8-1.2 (warfarin: 2.0-3.0)N/A
Inform your healthcare provider if you are taking blood thinners. No special preparation required.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Short name
BCG Protein Fraction Profile
Frequently asked questions
What does an abnormal result mean?
How often will I need this test?
Can diet or medications affect 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