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HelpTest Code MG Magnesium
Specimen Information
Obtain specimens using standard phlebotomy techniques.
No special patient preparation is necessary.
| Container | Specimen | Temperature | Collect Vol | Submit Vol | Min Vol | Stability |
| SST | Serum | Refrigerate | 4.0 mL | 1.0 mL | 0.6 mL | 7 days |
| Lithium Heparin | Plasma | Refrigerate | 4.0 mL | 1.0 mL | 0.6 mL | 7 days |
Reject Due To:
- Moderate or Marked Hemolysis
- Specimen unlabeled or mislabeled
Instrumentation / Method
Ortho Vitros XT 7600 / Colorimetric
Test Schedule / Analytical Time / Test Priority
Daily / Same Day / Available STAT
Reference Range
Male and Female:
1.6 - 2.3 mg/dL
FBC (OBGYN) range for patients receiving MG: 4.0 - 7.0 mg/dL
Critical Value(s):
Non-OBGYN: <1.0 or >4.7 mg/dL
OBGYN patients receiving MG: >7.0 mg/dL
CPT / LOINC / Order Code
| Meditech | Medent | LOINC | CPT |
| MGS | MGS | 19123-9 | 83735 |
| OBMGS | N/A | 19123-9 | 83735 |