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Calcium
Test CodeCA
Alias/See Also
Ca, Ca++
CPT Codes
82310
Preferred Specimen
Light GREEN (PST)
Other Acceptable Specimens
Serum GOLD (SST)
Serum (Red) or Gold (SST) or Orange (OJ) or Tiger Top Serum
Serum (Red) or Gold (SST) or Orange (OJ) or Tiger Top Serum
Instructions
Separate specimens from blood cells as soon as possible.
Specimen Stability
- Stable for one week at room temperature (15 - 25°C),
- Stable approximately 22 days refrigerated at 2-8°C,
- Stable up to 1 year frozen at<= -20°C
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolysis
Methodology
- Beckman AU
- Dimension
Setup Schedule
24x7
Report Available
< 1 day
Reference Range
< 3 months of age: 7.5 - 10.5 mg/dL; Critical < 6.0 mg/dL, > 13.0 mg/dL
> 3 months of age: 8.5 - 10.5 mg/dL; Critical <6.0 mg/dL, >13.0 mg/dL
> 3 months of age: 8.5 - 10.5 mg/dL; Critical <6.0 mg/dL, >13.0 mg/dL
Clinical Significance
Measurement of calcium is used in the diagnosis and treatment of parathyroid disease, a variety of bone diseases, chronic renal disease and tetany (intermittent muscular contractions or spasms). Although more than 99% of body calcium exists in bones and teeth, it is the calcium in blood that is of most concern clinically. The bones serve as a reservoir to maintain relative constancy of serum calcium by releasing calcium when required to prevent hypocalcemia and trapping calcium to prevent excessively high levels of serum calcium. The uptake and release of calcium from bone is under the control of parathyroid hormone.
Performing Laboratory
CRMC Laboratory
CCMC Laboratory
CCI Laboratory
FHSH Laboratory
