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Test Code MG Magnesium

Additional Codes

Epic EAP: LAB103

Epic Description: MAGNESIUM

Synonym

MG

Specimen Type

Blood

Specimen Required

 

 

  Collection Container Preferred Volume Minimum Volume
Preferred

Green, Lithium Heparin with Inert Gel

4.5 mL 1.0 mL
Alternate Gold, Clot Activator with Inert Gel OR Red, No Anticoagulant, No gel 4.5 mL 1.0 mL
Preferred Micropuncture Green Micro, Lithium Heparin with Inert Gel 2 X 0.6 mL 1 X 0.6 mL
Alternate Micropuncture Gold Micro, Clot Activator with Inert Gel 2 X 0.6 mL 1 X 0.6 mL

 

OALH LAB:

  Collection Container Preferred Volume Minimum Volume
Preferred

Green, Lithium Heparin with Inert Gel

4.0 mL 1.0 mL
Alternate Red, No Anticoagulant, No gel 4.0 mL 1.0 mL

Instructions for Collection and Transport

Centrifuge specimen. For non-gel tubes, aliquot plasma or serum into plastic vial. Transport refrigerated on freeze packs. If holding overnight, aliquot plasma or serum into a plastic vial and refrigerate.

Aliquot Requirements

Plasma or serum

Optimum 1.0 mL

Minimum 0.25 mL

Performing Lab

Chemistry Lab

Assay Frequency

24 hours

Routine Turnaround Time

1 day

OALH Lab: 240 minutes

CSR Storage Requirements

Centrifuge specimen. For non-gel tubes, aliquot plasma or serum into plastic vial. Deliver to laboratory. If holding overnight, aliquot plasma or serum into a plastic vial and refrigerate.

CPT Code Information

83735