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Protein in Urine (Quantitative)

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

This test measures the amount of protein found in your urine, which can help detect kidney problems or other health conditions.

Quick summary

["Protein in urine may signal kidney issues or other health concerns that need attention."]

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

Key facts at a glance

LOINC
31207-4
Short code
PR Tiss-sCnt
Synonyms
PR Tiss-sCnt
Category
coagulation
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
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

Why This Test Is Done

Your healthcare provider may order this test to check for signs of kidney disease, such as proteinuria (excess protein in urine). It can also help monitor conditions like diabetes, high blood pressure, or kidney damage from other illnesses. Sometimes, it’s used to screen for conditions that affect how your body filters waste from blood.

What to Expect Before the Test

No special preparation is usually needed. You may be asked to collect a urine sample in the morning or at a specific time. Avoid strenuous exercise or certain foods (like large amounts of salt or protein-rich foods) for 24 hours before testing if instructed by your provider.

What Happens During the Test

You’ll provide a small sample of urine, which is then tested in a lab to measure protein levels. The test can be done quickly, often as part of a routine urine dipstick or a more detailed lab analysis.

What the Results Mean

Higher-than-normal protein levels in urine may indicate kidney problems, inflammation, or other health issues. Your provider will interpret the results in the context of your medical history and other tests. Normal results suggest no significant protein loss in urine.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

Urine Protein Test

Frequently asked questions

What causes elevated protein in urine?
Elevated protein in urine can be caused by kidney diseases (like glomerulonephritis), diabetes, high blood pressure, infections, or certain medications. It may also appear temporarily due to illness, stress, or exercise. Always discuss results with your provider to understand possible causes and next steps.
How often should I get this test?
Your provider will determine how often you need this test based on your health condition, symptoms, and medical history. Some people with chronic kidney disease or related conditions may need regular monitoring, while others may only need it occasionally.
Can lifestyle changes help if I have high protein in urine?
Yes, lifestyle changes may help manage some causes of protein in urine. Reducing salt intake, controlling blood pressure and diabetes, staying hydrated, and avoiding smoking can sometimes lower protein levels. Always follow your provider’s advice for personalized care.
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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