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Urinary Protein Electrophoresis by Mass Concentration

Published: August 9, 2026Updated: August 16, 2026

This test measures the types and amounts of proteins found in your urine, often used to identify abnormal protein patterns that may signal kidney disease or other conditions.

Quick summary

["Helps diagnose kidney problems by revealing unusual protein patterns in urine."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
40661-1
Short code
M Protein Ur Elph-mCnc
Synonyms
M Protein Ur Elph-mCnc
Category
chemistry
Sample
urine
Container
Sterile urine container
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
electrophoresis
Specimen volume
10 mL
Stability
Room temperature: 2h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
0
Lipemia max
0
Icterus max
0
TAT
4–24 hours
Order
routine

Why Is This Test Done?

Your healthcare provider may order this test if you have symptoms like frequent urination, swelling, blood in urine, or if tests suggest kidney issues. It can also help monitor kidney function or check for conditions like multiple myeloma or certain types of glomerulonephritis.

What Does the Test Involve?

You’ll provide a urine sample (typically a 24-hour collection or random sample). The sample is analyzed using electrophoresis to separate proteins, which helps identify specific protein types and their concentrations.

What to Expect Before the Test

No special preparation is usually needed, but follow your provider’s instructions. Avoid certain medications or foods that might affect protein levels (e.g., high-protein diets) if directed.

What Are Common Findings?

Normal results show minimal protein in urine. Abnormal findings may include elevated levels of specific proteins (e.g., albumin, Bence Jones proteins), which can indicate kidney damage, infections, or metabolic disorders.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Urinary Protein Profile

Frequently asked questions

What does a high or low protein level in urine mean?
High protein levels in urine (proteinuria) can signal kidney problems, infections, or other conditions. Low levels are usually normal, but very low results may warrant further investigation to rule out hidden issues.
How long does it take to get results?
Results are typically available within 1–3 business days, depending on lab processing times. Follow up with your provider if you have questions about your results.
Can diet or medications affect this test?
Certain foods (e.g., high-protein diets) or medications (e.g., NSAIDs) may temporarily influence protein levels. Always inform your provider about any medications or dietary changes before testing.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

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.

Medical Disclaimer

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