Calcium, Random Urine without Creatinine : 14578

Test Code

UCAAU or 14578

CPT Codes
82310

Transport Container

Preferred Specimen
10 mL random urine

Alternative Specimens
Unpreserved urine or Urinalysis transport tube (yellow-top, blue fill line, preservative tube)

Minimum Volume
2 mL

Transport Temperature

Room temperature.

Specimen Stability

Room temperature: 5 days; Refrigerated: 35 days; Frozen: 6 months

Methodology
Spectrophotometry

Setup Schedule

Sunday - Saturday

Report Available

1 day

Reference Range

Not established

Clinical Significance

Urinary calcium reflects dietary intake, rate of calcium absorption by the intestine and bone resorption. Urinary calcium is used primarily to evaluate parathyroid function and the effects of vitamin D. A significant number of patients with primary hyperparathyroidism will have elevated urinary calcium. However, there are other clinical entities that may be associated with increased urine calcium: Sarcoidosis, Paget's disease of bone, vitamin D intoxication, hyperthyroidism and glucocorticoid excess. Decreased urine calcium is seen with thiazide diuretics, vitamin D deficiency and familial hypocalciuric hypercalcemia.

Performing Laboratory
med fusion

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.