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Test Code LAB103 MAGNESIUM

Additional Codes

CPT Code: 83735

Performing Laboratory

Peninsula Regional Medical Center - Chemistry

Specimen Requirements

Submit only 1 of the following specimens:

 

Plasma
Draw blood in a green-top (lithium heparin) tube. (Hemolyzed specimen is not acceptable.) Spin down and send 2 mL of lithium heparin plasma.
Note: 1. Indicate plasma.

2. Label specimen appropriately (plasma).

 

Serum
Draw blood in a gold-top serum gel tube. (Hemolyzed specimen is not acceptable.) Spin down and send 2 mL of serum.
Note: 1. Indicate serum.

2. Label specimen appropriately (serum).

Reference Values

1.7-2.4 mg/dL

 

Pediatric Critical value (automatic call-back) <16 years old:  <1.0 or >4.0 mg/dL

 

Adult (Not Labor and Delivery) Critical value (automatic call-back) 16 years old:  <1.0 or >5.0 mg/dL

 

Adult (Labor and Delivery) Critical values (automatic call-back) 16 years old:  <1.0 or >8.0 mg/dL

 

Additional Information

Available STAT