Magnesium, RBC
Order Code:
MGRBC
Test Summary
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.
Aliases
- N/A
Specimen Collection
Special Instructions
N/A
Preferred Specimen
0.5 mL packed red blood cells collected in an EDTA (royal blue-top tube or lavender-top) tube
Minimum Volume
0.2 mL packed RBC's • 0.5 mL whole blood
Instructions
See Vitamin Collection Link
Patient Preparation
Patient should refrain from taking vitamins, or mineral herbal supplements for at least one week before sample collection
Storage
Plastic transfer vial
Transport Temperature
Refrigerated (cold packs)
Specimen Stability
- Packed RBC cells
- Room temperature: 7 days
- Refrigerated: 7 days
- Frozen: Unacceptable
- Whole blood
- Room temperature: 4 days
- Refrigerated: 7 days
- Frozen: Unacceptable
Limitations
N/A
Other Acceptable Specimens
1 mL whole blood collected in: EDTA (lavender-top) tube, or EDTA (royal blue-top) tube
Unacceptable Specimens
N/A
Order Code
MGRBC
EPIC (Premier) Code
LAB3464
Includes
N/A
CPT Code
- 83735
Billing Code
- 670327
CPT Statement
Methodology
Inductively Coupled Plasma-Mass Spectrometry (ICP-MS)
FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by the U.S. Food and Drug Administration. The FDA has determined that such clearance or approval is not necessary. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
Physician Attestation of Informed Consent
N/A
Testing Laboratory
Quest Diagnostics Nichols Institute
14225 Newbrook Drive
Chantilly VA, 20153
14225 Newbrook Drive
Chantilly VA, 20153
Department
Reference Testing
Reference Range
4.0-6.4 mg/dL
Setup Schedule / Expected Turnaround Time
Tuesday - Saturday; Report available: 4 days
Resources
Specimen Collection
Special Instructions
N/A
Preferred Specimen
0.5 mL packed red blood cells collected in an EDTA (royal blue-top tube or lavender-top) tube
Minimum Volume
0.2 mL packed RBC's • 0.5 mL whole blood
Instructions
See Vitamin Collection Link
Patient Preparation
Patient should refrain from taking vitamins, or mineral herbal supplements for at least one week before sample collection
Storage
Plastic transfer vial
Transport Temperature
Refrigerated (cold packs)
Specimen Stability
- Packed RBC cells
- Room temperature: 7 days
- Refrigerated: 7 days
- Frozen: Unacceptable
- Whole blood
- Room temperature: 4 days
- Refrigerated: 7 days
- Frozen: Unacceptable
Limitations
N/A
Other Acceptable Specimens
1 mL whole blood collected in: EDTA (lavender-top) tube, or EDTA (royal blue-top) tube
Unacceptable Specimens
N/A
Result Information
Methodology
Inductively Coupled Plasma-Mass Spectrometry (ICP-MS)
Testing Laboratory
N/A
Reference Range
4.0-6.4 mg/dL
Setup Schedule / Expected Turnaround Time
Tuesday - Saturday; Report available: 4 days