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Citrate in Urine (Quantitative)

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

This test measures the amount of citrate, a natural substance found in your urine, which helps regulate blood calcium levels and supports kidney function.

Quick summary

["Citrate levels can help assess kidney function and metabolic health."]

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

Key facts at a glance

LOINC
27133-8
Short code
Citrate Ur Ql
Synonyms
Citrate Ur Ql
Category
chemistry
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

Why Is This Test Done?

Your healthcare provider may order this test if you have symptoms like kidney stones, metabolic disorders, or conditions affecting how your body processes minerals like calcium and phosphate. It can also help monitor kidney function or check for certain metabolic imbalances.

What to Expect Before the Test

No special preparation is usually needed, but you may be advised to drink plenty of water the day before to increase urine flow. Avoid certain medications or supplements that could affect results, as discussed with your doctor.

What Happens During the Test?

You’ll collect a urine sample in a clean container. The sample is then sent to a lab for analysis. The test measures the citrate concentration in your urine, which is compared to expected values for your health.

What Do Results Mean?

Results can help determine if your kidneys are properly excreting citrate, which may indicate issues like kidney stones, metabolic acidosis, or other conditions affecting mineral metabolism. Abnormal levels may signal underlying health concerns that need further evaluation.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance: Urine Citrate Levels

Short name

Urine Citrate

Frequently asked questions

How often will I need this test?
This test may be done occasionally, as part of routine kidney function checks, or more frequently if you have a history of kidney stones, metabolic disorders, or conditions like hyperparathyroidism. Your doctor will determine the timing based on your specific health needs.
What are the normal ranges for this test?
There are no strict universal reference ranges for citrate in urine alone, as they can vary based on factors like diet, hydration, and kidney function. Your results will be interpreted in relation to your overall health and clinical context.
Can diet or medications affect my citrate levels?
Yes, certain foods (like citrus fruits), fluids, and medications (such as calcium supplements or diuretics) can influence citrate levels. Always inform your healthcare provider about any medications or dietary changes before testing.
  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