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Proteinuria (Quantitative Urine Protein Test)

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

This test measures the amount of protein found in your urine. Protein in urine can sometimes indicate kidney problems or other health conditions.

Quick summary

["Check for signs of kidney or urinary issues with this simple urine protein test."]

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

Key facts at a glance

LOINC
57735-3
Short code
Prot Ur Ql Strip.auto
Synonyms
Prot Ur Ql Strip.auto
Category
chemistry
Sample
urine
Container
Sterile urine container
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
test-strip-automated
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 This Test Matters

Your kidneys normally filter waste and extra fluid from your blood. If they don’t work well, proteins (like albumin) can leak into your urine. Detecting protein in urine early can help identify kidney damage or other health risks, such as diabetes or high blood pressure.

What to Expect During the Test

You’ll likely collect a small sample of your urine at home or in a lab. The test involves a simple urine sample, often done in the morning for consistency. No special preparation is needed, but drinking extra water beforehand may help.

Common Causes of Protein in Urine

Protein in urine can be caused by many factors, including kidney diseases (like glomerulonephritis), diabetes, high blood pressure, urinary tract infections, or certain medications. Stress, exercise, or fever can also temporarily increase protein levels.

When to Talk to Your Doctor

If you notice frequent foamy urine, swelling in your legs, or other symptoms like fatigue or changes in urine color, mention them to your doctor. Repeated proteinuria may require further evaluation, such as kidney function tests or imaging.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Urine Protein

Frequently asked questions

What triggers protein in urine?
Protein in urine can be triggered by kidney issues, infections, high blood pressure, diabetes, or even physical activity. Stress or certain medications may also play a role.
How is this test different from a routine urine test?
This test specifically measures protein levels in urine, often beyond just detecting glucose or blood. A routine urine test may check for general contaminants or infections, while this test focuses on protein as a marker for kidney health.
Can I take medications before this test?
Most medications don’t affect proteinuria testing, but always check with your doctor if you’re unsure. Some medications (like NSAIDs) may impact kidney function indirectly, so it’s best to discuss with your provider.
  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