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Creaturstripscnc

Published: July 31, 2026Updated: August 16, 2026

A urine creatinine test measures the amount of creatinine, a waste product, in your urine to help assess kidney function.

Quick summary

{"Creatinine is a waste product filtered from blood by healthy kidneys","This test helps evaluate how well your kidneys are working","Abnormal levels may indicate kidney disease or other health conditions","The test is performed using a simple urine test strip","Results are often compared to creatinine levels in your blood"}

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

Key facts at a glance

LOINC
30002-0
Short code
UCR
Synonyms
Creat Ur Strip-sCnc
Category
kidney
Sample
urine
Container
Sterile urine container (plastic or glass)
Units
not specified
Ref low
1.8
Ref high
26.5
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
test-strip
CPT
82570
SNOMED
271344004
Specimen volume
10-50 mL preferred
Stability
Room temperature: 24-48 hours; Refrigerated (2-8°C): 5-7 days; Frozen (-20°C): 30 days. Avoid repeated freeze-thaw cycles.
Hemolysis max
0
Lipemia max
0
Icterus max
0
TAT
1–24 hours
Order
routine

What is this test?

A urine creatinine test measures the amount of creatinine in your urine. Creatinine is a waste product that comes from the normal breakdown of creatine, a substance found in your muscles. Healthy kidneys filter creatinine out of your blood and excrete it in your urine.

Why is it performed?

This test is primarily used to evaluate kidney function. It helps doctors understand how well your kidneys are filtering waste from your blood. The test may also be used to: assess the severity of kidney disease, monitor kidney function over time, check for dehydration, or validate other urine test results by confirming the urine sample is adequate.

How is the test done?

A urine creatinine test uses a special test strip (dipstick) that changes color when it contacts urine containing creatinine. You will be asked to provide a urine sample, usually collected in a sterile container. The test strip is then dipped into the sample or held in the urine stream. Results are typically available within minutes.

What do the results mean?

Normal creatinine levels in urine vary based on factors like age, sex, muscle mass, and diet. Higher than normal urine creatinine may indicate kidney problems, muscle breakdown, or intense exercise. Lower than normal levels could suggest kidney disease, reduced muscle mass, or certain medications. Your healthcare provider will interpret your results in context with other tests.

Are there any risks?

This test is very safe with minimal risks. The main discomfort is briefly holding your bladder until you can provide a urine sample. There is a very small risk of urinary tract infection from the sample collection process, but this is uncommon.

Reference range

1.8-26.5 mmol/L (approx. 20-300 mg/dL; varies with hydration/muscle mass)not specified

Specimen: urine

No special preparation or fasting required; random midstream urine specimen preferred

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Frequently asked questions

Do I need to fast before this test?
No fasting is typically required for a urine creatinine test. However, avoid strenuous exercise before the test as it can temporarily increase creatinine levels. Also, inform your doctor about any supplements or medications you are taking, as some can affect results.
What is the normal range for urine creatinine?
Normal ranges vary significantly based on age, sex, body size, and muscle mass. Typical values range from 20 to 300 mg/dL or 177 to 2650 μmol/L per day for 24-hour collection. For a single urine sample, results are often reported as a ratio to urine concentration. Your doctor will explain what is normal for you.
Can diet affect urine creatinine levels?
Yes, diet can influence creatinine levels. Eating large amounts of cooked meat can temporarily increase creatinine because meat contains creatine. A diet very low in protein or prolonged fasting may lower creatinine levels. Staying well hydrated typically results in lower, more dilute urine creatinine.
How is this test different from a blood creatinine test?
A blood creatinine test measures creatinine in your bloodstream, while a urine creatinine test measures how much creatinine your kidneys are excreting. Both tests are often used together to get a complete picture of kidney function. The ratio between blood and urine creatinine helps calculate creatinine clearance, which estimates how much blood your kidneys are filtering per minute.
What happens if my results are abnormal?
An abnormal result does not always mean you have a serious problem. Your healthcare provider will likely order additional tests, such as blood tests, imaging studies, or a 24-hour urine collection, to confirm a diagnosis. They will consider your symptoms, medical history, and other test results when interpreting your urine creatinine levels.
  1. 1
    MedlinePlus - Creatinine Urine TestSource
  2. 2
    Mayo Clinic - Creatinine TestSource
  3. 3
    National Kidney Foundation - Kidney TestsSource

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