|Alternate:||Urine Calcium; CA Urine|
|SQ Code:||UCA, UCAT|
|Available:||Daily, 24 hours|
|Turnaround:||Routine: 3 hours, STAT: 30 minutes|
|Specimen:||Urine, random or timed|
|Container:||Clean plastic urine collection container with lid|
|Rejection:||Contaminated with feces.|
|Uses:||Evaluate bone disease, calcium metabolism, patients with renal stones (nephrolithiasis) and idiopathic hypercalciuria. High in hyperparathyroidism, extopic hyperparathyroidism and renal tubular acidosis. Low in vitamin D deficiency.|
|Limitations:||Drugs affecting mineral metabolism should be withdrawn if possible (antacids, phosphates, diuretics, glucocorticoids, carbonic anhydrase inhibitors, anticonvulsants).|
|Method:||Colorimetric bichromatic endpoint|
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