Urine Calcium

You should get a urine calcium test if you have recurrent kidney stones, blood in the urine, or abnormal blood calcium levels. It is also recommended for suspected parathyroid disorders, vitamin D deficiency or excess, osteoporosis, or sarcoidosis, and for monitoring calcium or vitamin D supplements.

No fasting is usually required for a urine calcium test. Collect a clean, midstream urine sample in a sterile container, preferably in the morning. Follow your usual diet unless advised otherwise, and inform your doctor about any calcium or vitamin D supplements, antacids, diuretics, or steroids, as these can affect results.

No, fasting is usually not required for a urine calcium test. You can eat and drink normally before giving your sample, though your doctor may sometimes prefer a morning sample after an overnight fast. Collect a clean, midstream sample, and inform your doctor about any calcium or vitamin D supplements.