| Ordering Code | 200 |
|---|---|
| Test Name | Magnesium |
| Alias | Mg |
| Preferred Specimen | Serum |
| Preferred Container | SST (Gold) |
| Other Specimen/Container | Plasma in Lithium Heparin (Green), Serum in Plain (Red) |
| Optimum Volume | 0.5 mL |
| Transport Requirements | Oahu: Ambient Airline: Refrigerated |
| Specimen Stability | Ambient: 7 Days Refrigerated: 7 Days Frozen: 1 Year Frozen samples should be thawed only once. |
| Rejection Criteria | Specimen older than stability limits, Grossly hemolyzed, Insufficient quantity |
| Avail. Stat | YES |
| Analytic Time | 1 Day |
| Methodology | Colorimetric endpoint |
Reference range(s)
The reference ranges listed below are valid on this date of May 21, 2025.
| Component | Age | Male Norm | Male Critical Low | Male Critical High | Female Norm | Female Critical High | Female Critical Low | Units | Add'l info |
|---|---|---|---|---|---|---|---|---|---|
| Magnesium | ALL | 1.6-2.6 | <= 1.0 | >= 3.5 | 1.6-2.6 | >= 3.5 | <= 1.0 | mg/dL |