Calcium/Creatinine Ratio Urine is a test that compares the amount of calcium to creatinine in a urine sample, helping assess urinary calcium excretion while accounting for urine concentration. It is needed to investigate abnormal calcium metabolism, kidney stone risk, and conditions causing excessive or reduced calcium loss through the kidneys. The test may also support evaluation of parathyroid disorders and certain metabolic or kidney conditions.
Urinary calcium reflects how much calcium is being eliminated by the kidneys. Abnormally high or low levels may provide clues about calcium metabolism or certain kidney and hormonal disorders.
A high ratio may indicate increased urinary calcium excretion. Possible causes include certain dietary factors, medications, kidney conditions, or disorders affecting calcium and parathyroid hormone regulation.
A low ratio may indicate reduced urinary calcium excretion. Interpretation depends on blood calcium levels, dietary intake, kidney function, medications, and the reason for testing.
Yes. Abnormal parathyroid hormone activity can affect calcium levels in the blood and urine, making urinary calcium assessment useful in certain clinical situations.
