Magnesium

Testing Laboratory

Department

Chemical Pathology

Delphic Registration Code (Alpha Code)

SMG

Test Code (Numeric Code)

0168

Laboratory Handling

Sample Stability

7 days at 15-25°C, 7 days at 2-8°C, 1 year at -20°C

Synonyms

Plasma Magnesium
Serum Magnesium

Turnaround Time

3 hours

Specimen Type

• Plasma
• Serum

Specimen Requirements

Tube/Container Type:

Preferred

• Lithium Heparin PST- Gel (Light Green Cap)

Acceptable

• Lithium Heparin - Non-gel (Green Cap)
• Plain (Red Top)
• SST II (Gold Cap)

Paediatric Specimen Requirements

Tube/Container Type:

Preferred

• Heparin (Microtainer)

Acceptable

• Plain(Microtainer)
• SST(Microtainer)

Additional Specimen Information

PST 4.5 mL PST Blood (Preferred)
Micro-PST 0.5 mL Paediatric Micro-PST Blood (Preferred)
Heparin 5 mL Heparin Blood
Plain 4 mL Plain Blood
SST 3.5 mL SST Blood
Microsample 0.5 mL Paediatric Microsample Blood
Micro-heparin 0.5 mL Paediatric Micro-heparin Blood

Test Method

Principle : Colorimetric

Reagents: Roche MG2 kit

Analyser: Cobas c702

Uncertainty of Measurement

Uncertainty of Measurement: 8% at the level of 0.5 mmol/L 4% at levels of 1.5 mmol/L and higher

Additional Costing Information

Please be aware that prices may change. If required, confirmation of the current price can be obtained from Elaine McGrath .

Test performed by: LabPLUS Automation

Contact Information