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Urine Protein Test

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

A urine test that checks for protein in the urine, which can help evaluate kidney function and identify conditions that may cause protein loss.

Quick summary

["Protein in the urine can be temporary or a sign of kidney damage or another health condition."]

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

Key facts at a glance

LOINC
79539-3
Short code
HEDIS 2016-18 Urine Prot Tests
Synonyms
HEDIS 2016-18 Urine Prot Tests
Category
urine
Sample
urine
Container
Sterile urine container
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
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

What is this test?

A urine protein test measures the presence or amount of protein in a urine sample. It may be performed using a dipstick or a laboratory method that measures protein more precisely.

Why might I need this test?

This test may be ordered during a physical exam, to screen for kidney disease, or to monitor conditions such as diabetes, hypertension, or autoimmune disease. It can also help assess treatment or the return of protein to the urine.

How is the test performed?

You provide a urine sample according to the laboratory's instructions. The laboratory analyzes the sample for protein, sometimes using a urine dipstick and sometimes using a quantitative laboratory method.

How do I prepare for the test?

Follow the collection instructions provided by the laboratory, including whether a first-morning or clean-catch sample is required. Tell your clinician if you recently exercised intensely, had a fever or urinary infection, or are pregnant, as these factors may affect the result.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Urine protein test

Frequently asked questions

Does finding protein in my urine always mean I have kidney disease?
No. Protein may be present temporarily because of exercise, fever, infection, pregnancy, or other temporary factors. Persistent protein loss usually requires further evaluation.
Is this the same as a urine albumin test?
Both assess protein-related markers in urine, but they are not always interchangeable. Your clinician will interpret the specific test ordered in relation to your condition.
How is a urine sample collected?
Urine is collected in a sterile container using the method specified by the laboratory. This may be a clean-catch midstream sample or another timed collection, depending on the test.
  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