Good to knowOne result rarely tells the whole story. Your provider looks at your results together with your symptoms, exam, and other tests.
What the test is
It's used for kidney stones, kidney disease, and some hormone conditions.
Why it's done
- Repeated kidney stones
- Protein in the urine
- Some hormone tests, like cortisol
Getting ready and what happens
- Start in the morning: flush the first urine, then collect every drop for 24 hours, ending with the next morning's first urine.
- Keep the container cool as instructed.
How the test is done
- You collect urine at home in a large container.
What the results mean
Results
Guide diet changes and medicines to prevent stones, or measure kidney protein loss.
Questions to ask your provider
- What do my results mean for me?
- Do I need to repeat this test or have other tests?
Related conditions
Related tests
Sources
Last updated 2026-11-13.