Home
HelpOrder Code MG Magnesium, Plasma or Serum
Useful For
Quanitative determination of magnesium
Specimen Requirements
Collection Container/Tube:
Preferred: Green-top (lithium heparin) gel tube.
Acceptable: Plain, red-top tube or a serum gel tube
Specimen Volume: 2 mL
Pediatric (minimum) volume: 0.5 mL in a green top (lithium heparin) MICROTAINER gel tube
Specimen Minimum Volume
0.5 mL
Reference Values
1.8-2.4 mg/dL
Critical values (automatic call-back):
Low: <1.0 mg/dL
High: >5.0 mg/dL
Performing Laboratory
Ridgeview Medical Center Laboratory
Two Twelve Medical Center Laboratory
Sibley Medical Center
Day(s) Test Set Up
Monday through Sunday
Methodology
Bichromatic endpoint
Test Classification and CPT Coding
83735
Specimen Transport Temperature
| Specimen Type | Temperature | Time |
|---|---|---|
| Serum/plasma | Ambient | 7 days |
| Refrigerated (preferred) | 7 days | |
| Frozen | 12 months |