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Tin/Creatinine Ratio, Urine

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

Measures the amount of tin in urine relative to creatinine, which helps account for urine concentration when evaluating tin exposure.

Quick summary

["This test is mainly used to evaluate exposure to tin and interpret urinary tin levels in relation to urine concentration."]

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

Key facts at a glance

LOINC
17710-5
Short code
Tin/Creat Ur
Synonyms
Tin/Creat Ur
Category
kidney
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?

This test measures tin in your urine and compares it with the amount of creatinine in the same sample. Creatinine is a waste product that can help account for differences in urine concentration.

Why might I need this test?

It may be used when evaluating possible exposure to tin at work, from environmental sources, or from other sources. A urine tin-to-creatinine ratio can be useful when comparing results with other urine measurements or monitoring over time.

How is the test performed?

A urine sample is tested to determine the concentrations of tin and creatinine. The laboratory then calculates the ratio of tin to creatinine. The sample may be a single urine collection or a timed collection, depending on the testing instructions.

How do I prepare for the test?

Follow the collection instructions provided by your healthcare professional or laboratory, including whether a first-morning or timed sample is required. Use the supplied clean container and tell the laboratory about any possible workplace, environmental, or supplement exposure.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Urinary Tin-to-Creatinine Ratio

Frequently asked questions

What does the tin-to-creatinine ratio show?
It shows the amount of tin in urine relative to creatinine, helping normalize the tin measurement for differences in urine concentration.
What can cause an elevated result?
Possible causes include occupational or environmental exposure to tin and contamination during collection. Diet, supplements, and medication or supplement labels containing tin may also contribute.
Do I need to collect a 24-hour urine sample?
Not always. Some results use a spot urine sample, while others require a timed collection, so follow the specific instructions provided by the laboratory.
  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