Test directory: Magnesium, RBC

Ordering Code7183
Test NameMagnesium, RBC
AliasMg RBC
Preferred SpecimenWhole Blood
Preferred ContainerTrace Element EDTA (Royal Blue) or EDTA, K2 (Lavender)
Other Specimen/ContainerRBC's from EDTA, K2 (Lavender) or Trace Element EDTA (Royal
Optimum Volume1.5 mL Whole Blood or 1.0 mL packed cells
Collection InstructionsPatient should refrain from taking vitamins, or mineral herbal supplements for at least one week before sample collection.
Handling InstructionsDO NOT centrifuge whole blood specimen

For RBC specimen ONLY:
Centrifuge to separate plasma from RBC's and discard plasma
Transfer RBC's to a plastic transfer vial from a Quest
Diagnostics (trace element and metal free) collection kit or transfer to a plastic screw cap vial.
Transport RequirementsOahu: Ambient
Airline: Refrigerated
Specimen StabilityEDTA Whole Blood:
Ambient: 4 Days
Refrigerated: 7 Days
Frozen: Unacceptable
EDTA packed cells:
Ambient: 7 Days
Refrigerated: 7 Days
Frozen: Unacceptable
Rejection CriteriaClotted, Hemolyzed
Avail. StatNO
Analytic Time7 Days
MethodologyInductively Coupled Plasma/Mass Spectrometry (ICP/MS)
Reference Lab Quest Diagnostic Lab-NI

Reference range(s)

ComponentAgeMale NormMale Critical LowMale Critical HighFemale NormFemale Critical HighFemale Critical LowUnitsAdd'l info
Magnesium, RBCALLSee report.