24-Hour Urinary Calcium is a diagnostic test that measures the amount of calcium excreted in the urine over a 24-hour period. This test helps assess calcium metabolism and can provide valuable information about bone health, kidney function, and underlying metabolic conditions.

Why It Should Be Tested: This test is crucial for diagnosing and managing various conditions related to calcium balance. High levels of urinary calcium can indicate hypercalciuria, which may be linked to conditions such as hyperparathyroidism, kidney stones, or certain metabolic disorders. Conversely, low urinary calcium levels may suggest conditions like hypoparathyroidism or poor dietary calcium intake. By evaluating urinary calcium excretion, healthcare providers can better understand calcium absorption and regulation, aiding in the diagnosis and treatment of related disorders.