Test directory: Magnesium, RBC

Ordering Code 7183
Test Name Magnesium, RBC
Alias Mg RBC
Preferred Specimen Whole Blood
Preferred Container EDTA, K2 (Lavender)
Other Specimen/Container Whole Blood in Trace Element EDTA (Royal Blue), Whole Blood in Trace Element sodium heparin (Royal Blue)
Optimum Volume 1 mL
Collection Instructions Patient should refrain from taking vitamins, or mineral herbal supplements for at least one week before sample collection.
Handling Instructions Do NOT centrifuge specimen. Specimen is forwarded to another lab for testing; do not share with other tests.
Transport Requirements Oahu: Ambient
Airline: Refrigerated
Specimen Stability Ambient: 7 Days
Refrigerated: 7 Days
Frozen: Not Stable
Avail. Stat NO
Analytic Time 14 Days
Methodology Inductively Coupled Plasma/Mass Spectrometry (ICP/MS)
Reference Lab  Quest Diagnostic Lab-NI

Reference range(s)

The reference ranges listed below are valid on this date of May 22, 2026.
Component Age Male Norm Male Critical Low Male Critical High Female Norm Female Critical High Female Critical Low Units Add'l info
Magnesium, RBC ALL See report.