| Ordering Code | 130 |
|---|---|
| Test Name | Calcium |
| Alias | Ca |
| Preferred Specimen | Serum |
| Preferred Container | SST (Gold) |
| Other Specimen/Container | Serum in Plain (Red), Plasma in Lithium Heparin (Green-PST), Plasma in Lithium Heparin (Dark Green-PP No Gel) |
| Optimum Volume | 1 mL |
| Handling Instructions | All specimen types must be centrifuged within 2 hours of collection. If no gel separation present in tube and testing is delayed, plasma/serum is aliquoted from cells within 2 hours of collection. |
| Transport Requirements | Oahu: Ambient Airline: Ambient |
| Specimen Stability | Ambient: 7 Days Refrigerated: 22 Days Frozen: 1 Year (Aliquot) Frozen samples should be thawed only once. |
| Rejection Criteria | Specimen older than stability limits, Insufficient quantity, Grossly hemolyzed |
| Avail. Stat | YES |
| Analytic Time | 1 Day |
| Methodology | Arsenazo III |
Reference range(s)
The reference ranges listed below are valid on this date of November 5, 2025.
| Component | Age | Male Norm | Male Critical Low | Male Critical High | Female Norm | Female Critical High | Female Critical Low | Units | Add'l info |
|---|---|---|---|---|---|---|---|---|---|
| Calcium | >=12Y | 8.6-10.3 | <= 6.5 | >= 13.0 | 8.6-10.3 | >= 13.0 | <= 6.5 | mg/dL | |
| Calcium | 1Y-11Y | 8.8-10.8 | <= 6.5 | >= 13.0 | 8.8-10.8 | >= 13.0 | <= 6.5 | mg/dL | |
| Calcium | 9D-1Y | 9.0-11.0 | <= 6.5 | >= 13.0 | 9.0-11.0 | >= 13.0 | <= 6.5 | mg/dL | |
| Calcium | 0-9D | 7.6-10.4 | <= 6.5 | >= 13.0 | 7.6-10.4 | >= 13.0 | <= 6.5 | mg/dL |
