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HelpTest Code MG Magnesium, Plasma or Serum
Additional Codes
| Ordering Mnemonic |
|---|
| MG |
Methodology
Colorimetric
Performing Laboratory
Holland Hospital Laboratory Services
Specimen Requirements
Submit only 1 of the following specimens:
Plasma
Container/Tube: Mint-top (lithium heparin) tube
Specimen Volume: 1 mL of plasma
Collection Instructions:
1. Indicate plasma.
2. Label specimen appropriately (plasma).
3. Centrifuge within 2 hour of collection.
Serum
Container/Tube: Serum gel tube
Specimen Volume: 1 mL of serum
Collection Instructions:
1. Indicate serum.
2. Label specimen appropriately (serum).
3. Centrifuge within 2 hours of collection.
Specimen Transport Temperature
Refrigerate
Specimen Stability Information
Serum is stable for up to one week at 2-8° Celcius.
Day(s) Test Set Up
Monday through Sunday
Available STAT
Test Classification and CPT Coding
83735 (HH Bill Code 0205174)
Reference Values
1.6-2.3 mg/dL
Critical values (automatic call-back): ≤1.0 mg/dL or ≥6.0 mg/dL