Serum/plasma protein electrophoresis (qualitative)
This test measures the different types of proteins in your blood using an electrical charge to separate them. It helps identify abnormalities in protein distribution, which can signal conditions like multiple myeloma, liver disease, or other disorders.
["This test helps doctors check for unusual protein patterns that may indicate health issues."]
Key facts at a glance
- LOINC
- 58722-0
- Short code
- LPT PW Bld-Imp
- Synonyms
- LPT PW Bld-Imp
- Category
- chemistry
- Sample
- whole-blood
- Container
- Lavender-top (EDTA)
- 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
- CPT
- 85610
- SNOMED
- 396252006
- Specimen volume
- 3 mL
- Stability
- Room temperature: 4h, Refrigerated: 24h
- Hemolysis max
- 0
- Lipemia max
- 0
- Icterus max
- 0
- TAT
- 4–24 hours
- Order
- routine
What This Test Measures
Electrophoresis separates proteins based on their size and electrical charge. The test detects five main protein bands: albumin, alpha-1 globulins, alpha-2 globulins, beta globulins, and gamma globulins. Abnormal patterns may appear as extra bands, missing bands, or shifts in normal positions.
Why It’s Done
Doctors order this test to diagnose or monitor conditions like multiple myeloma, lymphoma, liver disease, kidney disease, or certain autoimmune disorders. It may also help evaluate protein-related symptoms such as swelling, fatigue, or unexplained weight changes.
Sample Collection and Preparation
A blood sample is drawn from a vein, usually in your arm. The blood is then processed to separate serum or plasma for testing. No special preparation is needed, but fasting may be advised depending on your doctor’s instructions.
What to Expect Before the Test
You may feel slight discomfort during the blood draw, but it typically takes a few minutes. Avoid eating or drinking for 8–12 hours before if fasting is required. Wear comfortable clothing and let your doctor know about any medications or allergies.
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.
Clinical Significance
Short name
Protein Electrophoresis (Serum/Plasma)
Frequently asked questions
What abnormal results might mean?
How long will I need to wait for results?
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