Causes and Diagnoses

Causes and Diagnoses of Kidney Stones

Kidney stones form when urine contains an excess of crystal-forming substances, including calcium, oxalate and uric acid. Numerous conditions can be related to the formation of kidney stones, such as:

Diagnosing kidney stones

Diagnostic tests for kidney stones may include:

  • Intravenous pyelogram (IVP): Special dye is injected into one of your veins and X-rays are taken as the dye passes through your urinary tract, allowing your physician to see tumors, kidney stones, blocked areas as well as blood flow through the kidneys.
  • Lab tests: Your passed stones can be analyzed to determine their chemical make-up.
  • Pelvic or urethral ultrasound: This imaging test uses high-frequency sound waves to create an image of the organs.
  • Pelvic multi-resonance imaging (MRI): Using a combination of large magnets, radiofrequencies and a computer, an MRI produces detailed images of organs and structures within the body.
  • Urinalysis: Your urine will be checked under a microscope for the presence of infection or blood.