Kidney Stone Analysis Test
A kidney stone analysis identifies what your kidney stone is made of. This helps your provider understand why it formed and how to prevent future stones.
What this test measures
Kidney stone analysis measures the chemical composition of a kidney stone to determine its type, such as calcium, uric acid, cystine, or struvite.
What your results mean
Reference ranges vary by laboratory and by your age and sex. MedlinePlus does not publish a single normal range for this test — always read your result against the range printed on your own lab report and discuss it with your provider.
Frequently asked questions
What is a kidney stone analysis?
It is a test to find out what a kidney stone is made of.
Why is this test done?
To help your provider understand why the stone formed and how to prevent more stones.
What are the main types of kidney stones?
Calcium, uric acid, cystine, and struvite.
What causes kidney stones?
High levels of certain minerals or salts in your urine.
How can I prevent future kidney stones?
Your provider will recommend steps based on the stone type, often including drinking plenty of water and changing your diet.
Related lab tests
Sources
- MedlinePlus: Kidney Stone Analysis — NIH MedlinePlus
Last updated . Information is aggregated from official public sources and is not a substitute for professional medical care.