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Magnesium
MessageMagnesium measurements are used in the diagnosis and treatment of hypomagnesemia (abnormally low) and hypermagnesemia (abnormally high). Magnesium is a major intracellular cation, second only to potassium in concentration.
Test Code
MG
Alias/See Also
LAB3000017
CPT Codes
83735
Preferred Specimen
2.0 mL serum collected in a gold serum separator tube (SST)
Minimum Volume
0.5 mL serum
Other Acceptable Specimens
2.0 mL serum collected in an orange rapid clot serum separator tube (RCT)
2.0 mL plasma collected in a light green lithium heparin plasma separator tube (PST)
2.0 mL plasma collected in a light green lithium heparin plasma separator tube (PST)
Specimen Stability
Up to 1 week when Refrigerated (2-8o)
Reference Range
| Sex | Age | Reference Range |
|---|---|---|
| M/F | 0 - 150 years | 1.8 - 2.7 mg/dL |
Performing Laboratory
Penn Medicine Lancaster General Health
