A 30-year-old member asked:
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can a urine test show you have kidney stones?

4 doctor answers
Dr. George Klauber
Specializes in Pediatric Urology
No: Urine test can show presence of blood, crystals & acidity or alkalinity or acidity of urine, in addition to quantitate calcium, uric acid, cystine or citrate. Former 3 can be elevated with metabolic stone disease. Findings may be suggestive, but diagnostic for stones. You need a kidney ultrasound, abdominal xray or better still an abdominal CT scan to demonstrate kidney stones.
Answered on Mar 5, 2018
Dr. Eric Umbreit
13 years experience Urology
No: Urine test may suggest stones, infections, tumors, and other conditions, but urine test are really diagnositic on their own. Kidney stones are typically diagnosed with x-ray or ct.
Answered on Jul 4, 2015
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Dr. Tarek Naguib
39 years experience Nephrology and Dialysis
No but suggests: Urine test in persons with kidney stones usually shows red blood cells under the microscope. However, if the stone is dormant and small it may show nothing. Occasionally, a stone will be accompanied by infection. Then whites cells may show in urine bec of infection not bec of stone. Also persons may have red blood cells in urine bec of different reasons than stones. A doctor will differentiate.
Answered on May 3, 2019
Dr. Atul Singh
27 years experience Nephrology and Dialysis
Test: The first test for stones is an ultrasound. In some patients a CT scan may be needed. Urine findings are non specific though a metabolic urine testing offers into reasons for stone formation.
Answered on Nov 27, 2017

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