Serum Protein Electrophoresis (Qualitative)
This test measures the distribution of different protein types in your blood serum using gel electrophoresis, helping identify abnormalities in protein composition.
["This test helps diagnose conditions affecting blood proteins, such as infections, kidney disease, or inherited disorders."]
Key facts at a glance
- LOINC
- 44932-2
- Short code
- M Protein 2 MFr SerPl Elph
- Synonyms
- M Protein 2 MFr SerPl Elph
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Ref low
- 7.35
- Ref high
- 7.45
- Critical range
- 7.2 N/A – 7.6 N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- electrophoresis
- 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 Does This Test Measure?
Electrophoresis separates blood proteins into fractions based on size and electrical charge. The test detects variations in protein bands, which can reveal conditions like multiple myeloma, liver disease, or chronic inflammation.
Why Might You Need This Test?
Your healthcare provider may order this test if you have symptoms like unexplained weight loss, fatigue, swelling, or if they suspect conditions like kidney disease, infections, or certain cancers.
Preparation and Sample Collection
No special preparation is needed, but fasting may not be required. A blood sample is drawn from a vein, typically in your arm, and sent to the lab for analysis.
What Are Common Findings?
Abnormal patterns may show high or low levels of specific proteins, such as albumin, globulins, or immunoglobulins. For example, a spike in one fraction might indicate a disorder like monoclonal gammopathy.
Reference range
NCBI: pH 7.35-7.45N/A
No special preparation usually required. Stay well hydrated. Inform your healthcare provider of all medications and supplements you are taking.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Short name
Protein Electrophoresis (Serum)
Frequently asked questions
How long does it take to get results?
What does each protein band represent?
Can diet affect protein electrophoresis 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 17, 2026. · Read our editorial policy