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Royal Blue (EDTA)
Specimen Requirements
Preferred:
Container/Tube: Royal Blue (EDTA)
Minimum Volume: 2.0 mL
Collection Instructions: Centrifuge within 2 hours
Unacceptable
Specimens collected in tubes other than royal blue (EDTA). Specimens transported in containers other than Royal Blue (EDTA) tube or Trace Element-Free Transport Tube. Clotted or grossly hemolyzed specimens.
Specimen Stability
Ambient: 1 week
Refrigerate: 1 week
Frozen: Unacceptable
Reference Range
1.5-3.1 mmol/L
Methodology
Quantitative Inductively Coupled Plasma-Mass Spectrometry
CPT
83735
Lab Handling
Centrifuge whole blood and separate RBCs from plasma within 2 hours of collection. Transfer 2 mL RBCs to an ARUP Trace Element-Free Transport Tube (ARUP supply #43116) available online through eSupply using ARUP Connect™ or contact ARUP Client Services at (800) 522-2787. (Min: 0.6 mL)
Storage and Transport Temperature
Room Temperature, Also Acceptable: Refrigerated
Turn Around Time
Performed
Sun-Sat
Reported
1-4 days
Test Alias
- Intracellular Magnesium
- MgRBCs