CALCIUM, RANDOM URINE

Code
500.4340
Name
CALCIUM, RANDOM URINE
Category
None
Department
Chemistry
Start Date
Expiration Date
Synonyms
Urine CA; Urine Calcium
CPT Codes
82310
Site
Main Lab
Reference Test
ATLAS Test Code

CAU

Specimen Information

Type

Urine, random *Performed at laboratory: Acidify with 10mL 6N HCl*

Volume

10.0 ml

Transport Info

Room Temperature 2 day stability Refrigerated 4 day stability Frozen 3 week stability

Fasting Required?
False
Patient Instructions

Reference Range

Reference ranges not available for random urine specimen

Methodology

Ion-selective Electrode (ISE)

Clinical Significance

Used in the diagnosis and treatment of parathyroid disease, a variety of bone diseases, chronic renal disease, and tetany (intermittent muscular contractions or spasms). The main significance in determining urinary calcium lies in the differentiation between hypercalciuria and hypocalciuria and the differential diagnosis of nephrolithiasis.

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