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About the test
What is this test done for?
The spot urine calcium is a test that determines how much calcium is excreted out of the body through the urine.
Why is it Done?
Calcium levels have to be very high or too low to show symptoms; hence, most of them do not show symptoms and get it checked on regular check-ups.
When should it be performed?

In the following conditions, the spot urine calcium test is performed:

  • To evaluate if the high levels of calcium in urine may result in kidney stones.
  • To evaluate the levels of calcium intake in the diet.
  • To assess the absorption of calcium in the intestines.
  • To assess the functioning of the kidneys
  • To evaluate and see if there are problems related to the parathyroid glands.
  • If symptoms like muscle cramps, abdominal cramps, and tingling in fingers are seen.
  • If symptoms like fatigue, weakness, loss of appetite, nausea, vomiting constipation, increased thirst, increase urinary frequency are seen.
  • Calcium-related disorder could be related to thyroid disorders, malabsorption, and malnourishment.
How is it done
An early morning urine sample will be needed. Discard the first urine and collect sample from middle stream, avoiding any contact with skin. Collect urine in a sterile container.
  • Normal values are less than 0.14.
  • If the levels are low, it suggests either malnourishment disorders or hypoparathyroidism.
  • If the levels are high, it could indicate the following conditions: hyperparathyroidism, idiopathic hypercalciuria, sarcoidosis, sarcoidosis, vitamin D intoxication.
Other Tests
Renal function blood test, Serum calcium, Vitamin D levels, and Parathyroidism levels will help in identifying the cause of the abnormal levels.
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