Magnesium, RBC
Also known as RBC Magnesium, MG (RBC), MG RBC, MG++ (RBC), RBC MG
What it measures
- Magnesium, RBCLOINC 26746-8
Before the visit
Patient should refrain from taking vitamins, or mineral herbal supplements for at least one week before sample collection.
Specimen
- Specimen
- 0.5 mL packed RBC cells collected in an EDTA (lavender-top) tube or sodium heparin (royal blue-top) tube
- Minimum volume
- 0.2 mL RBCs • 0.5 mL whole blood
- Also accepted
- 1 mL whole blood collected in: EDTA (lavender-top) tube, EDTA (royal blue-top) tube, or sodium heparin (royal blue-top) tube
- Container
- Trace-element and metal-free transport tube
- Temperature
- Refrigerated (cold packs)
Packed RBCs: Centrifuge specimen and discard plasma within two hours of collection. Transfer RBCs to a plastic transfer vial. Whole blood: Do not centrifuge whole blood.
Turnaround
Set up: Mon, Thurs
Billing
CPT 83735