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623: Magnesium, Rbc Print View
Magnesium, RBC ICP/MS  4 - 6.4  mg/dL 

PRIMARY
1 Red Blood Cells 0.5 (0.2) mL   Room Temperature - 7 Day(s)/Refrigerated - 7 Day(s)  
ALTERNATE
  Whole Blood EDTA 1 (0.5) mL   Room Temperature - 4 Day(s)/Refrigerated - 7 Day(s)  
  WB EDTA Trace Metal   Refrigerated - 7 Day(s)/Room Temperature - 4 Day(s)  

Magnesium is an essential trace element. Deficiency leads to irritability, neuromuscular abnormalities, cardiac and renal damage. Its salts are used as antacids and cathartics. Excessive amount may cause CNS depression, loss of muscle tone, respiratory and cardiac arrest.

Patient should refrain from taking vitamins, or mineral herbal
supplements for at least one week before sample collection.
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.
Do not centrifuge whole blood.
Setup Schedule
Tuesday-Saturday

Reported (Analytical Time)
4 days

CPT Code
83735

The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

Notes
Specimen Requirements:
Preferred:
0.5 mL (0.2 mL minimum) packed RBC cells collected in an EDTA (lavender-top) or EDTA (royal/dark blue-top) tube
Acceptable:
1.0 mL (0.5 mL minimum) whole blood collected in an EDTA (royal/dark blue-top) tube or EDTA (lavender-top) tube
Transport Temperature: Refrigerated
Reject Criteria:
Packed RBC Cells & Whole Blood: Frozen; Unacceptable






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