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Urine Protein, Qualitative

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

A qualitative urine test checks whether protein is detectable in a urine sample. It may help evaluate kidney function or identify possible kidney problems.

Quick summary

["Detectable urine protein can be associated with kidney disease or other conditions that affect the kidneys."]

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

Key facts at a glance

LOINC
6226-5
Short code
Rat Urine Prot IgE Qn
Synonyms
Rat Urine Prot IgE Qn
Category
urine
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

What is this test?

This laboratory test examines a urine sample to determine whether protein is present. A qualitative result generally reports detectable protein rather than a specific concentration.

Why might I need this test?

Urine protein testing may be ordered during a physical examination, as part of kidney evaluation, or when symptoms suggest kidney disease. It can also be used to monitor people with known kidney conditions.

How is the test performed?

A urine sample is collected and analyzed by the laboratory. The exact laboratory method depends on the test ordered and may include a reagent-based screening method or more detailed protein analysis.

How do I prepare for the test?

Follow the collection instructions provided by your healthcare professional. Collect the urine in the designated sterile container and avoid contaminating it with toilet paper or other material.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Detectable protein in urine may occur with kidney inflammation, damage to the kidney filters, diabetes, or high blood pressure. A small amount can also be temporary and related to exercise, fever, or other short-term conditions, so results should be interpreted with other findings.

Short name

Urine protein test

Frequently asked questions

Does a positive urine protein result always mean I have kidney disease?
No. Protein in urine can be temporary or related to other conditions, and a result must be considered with symptoms, medical history, and other kidney tests.
What kind of urine sample is needed?
The required collection method may vary, such as a single urine sample or a timed collection. Use the container and instructions supplied by the laboratory or healthcare professional.
Can medications or exercise affect the result?
Yes. Certain medications and recent strenuous exercise can influence urine protein results. Tell your healthcare professional about medications and discuss the timing of the test if needed.
  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