Diagnosis

In evaluating your condition, your doctor may perform the following:

• Physical examination, especially of the abdomen or back
• Blood test to exam the levels or uric acid or calcium in your blood
• Urinalysis to look for crystals or red blood cells in the urine or to measure the level of
stone-preventing substances
• Imaging tests may show kidney stones in your urinary tract. CT scans can reveal small stones that abdominal X-rays may miss. If you're pregnant, your doctor may order an ultrasound.
• Analysis of passed stones. Your doctor may ask you to urinate through a strainer to catch stones that you may pass. A lab analysis will provide the data your doctor needs to confirm the cause of the stone.