Chromatography-based protein electrophoresis of serum/plasma (qualitative or semi-quantitative analysis of protein bands)
This test measures the distribution of proteins in your blood using gel electrophoresis, helping identify patterns that may indicate conditions like kidney disease, liver problems, or other disorders affecting protein production.
["Electrophoresis helps diagnose protein abnormalities by separating blood proteins for closer inspection."]
Key facts at a glance
- LOINC
- 62350-4
- Short code
- Chrom analy pnl CVS G-banded
- Synonyms
- Chrom analy pnl CVS G-banded
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- g-banded
- CPT
- 86038
- 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
Electrophoresis separates blood proteins based on their size and electrical charge. Different protein groups (such as albumin, globulins, and other fractions) move at distinct speeds, creating visible bands on a gel. These bands can reflect normal protein levels or signs of disease.
How the Test Works
A small blood sample is drawn and mixed with a buffer solution. An electric current is applied, causing proteins to migrate through a gel matrix. After separation, the gel is stained to reveal distinct protein bands, which are then analyzed for patterns or abnormalities.
Common Uses
This test is often used to diagnose conditions like multiple myeloma, nephrotic syndrome, liver disease, or certain autoimmune disorders. It may also help monitor treatment progress or identify hidden protein imbalances.
When You Might Need This Test
Your doctor may recommend this test if you have symptoms like unexplained weight loss, fatigue, swelling, or if they suspect a condition affecting protein production or kidney function.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Short name
Protein Electrophoresis (Serum/Plasma)
Frequently asked questions
Why might my doctor order this test?
What do the results mean?
How long will it take to get results?
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