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Calcium, Urine Timed
MessagePerforming Lab: Central Lab, Regions
Test Code
3760
Alias/See Also
Sunquest: UCAT
CPT Codes
82340
Preferred Specimen
0.2 mL of a timed urine collection
Minimum Volume
0.1 mL
Instructions
Preserve urine by refrigeration - Preservative not required.
HP Clinics: send in bar-coded urine transport tube. Mix urine well before aliquoting.
HP Clinics: send in bar-coded urine transport tube. Mix urine well before aliquoting.
Transport Container
HP Clinics: Send to lab in bar-codes urine transport tube
Transport Temperature
Refrigerated
Specimen Stability
Refrigerated: 5 weeks
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Unacceptable preservatives: Boric Acid with sodium formate as preservative, 10% thymol as preservative
Methodology
Colorimetric - Arsenazo III
Setup Schedule
Hospital: Daily
Clinics: Monday - Friday
Clinics: Monday - Friday
Report Available
Same Day
Reference Range
No reference range established
Clinical Significance
Used for identification of abnormal physiologic states causing excess or suppressed excretion of calcium, such as hyper parathyroidism, vitamin D abnormality, disease that destroy bone, prostate cancer, and drug treatment, such as thiazide therapy.
