Magnesium, Blood - Saskatoon
Discipline
Biochemistry
Specimen Information
Specimen types accepted
- Plasma
Specimen collection container
- Preferred collection container: Blood – Light green (Lithium Heparin gel)
- Alternative collection container: Gold (gel)
Required volume
- Optimal volume: 4.5 mL Full collection tube
- Minimum volume: 1 mL
(Submitting the minimum volume makes it impossible to repeat the test or perform confirmatory/reflex testing. In some situations, a minimum volume may require a second collection.) - Pediatric Volume
Transport and stability
- 4 hours on cells
- Plasma – 7 days at 2 – 8ºC
Rejection criteria
Pathology and Laboratory Medicine Acceptance and Rejection Criteria
- Specimens received where the proper collection protocols were not followed
Performance
Methodology
- Colorimetric
Days/times performed
Availability |
|
Testing site |
|
Maximum laboratory time
Results reporting
- In Hospital reported within 2 hours
- Community urgent reported within 4 hours
- Community routine reported within 24 hours
- Critical results ≤ 0.50 mmol/L and ≥ 2.00 mmol/L will be phoned
Specimen retention time
- 3 days
Last Updated: October 4, 2024