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Magnesium

Laboratory:Clinical Biochemistry
Test Code:MG
Specimen Types:Serum
Plasma
Container Types:
SST
Lithium Heparin (with Gel)
Collection & Request Instructions:Retrospective testing within 7 days

Serum magnesium concentration varies with protein concentration (20-30% is protein-bound), acid-base status and carbohydrate intake (compare potassium) and thus may not reflect the total body stores.

Transport Instructions between Sites and/or Laboratories:Room Temperature
Additional Notes:

Reference Intervals (Adult 18 yrs+): 

0.70 -1.10 mmol/L

Source:

RCPA/AACB Harmonised Reference Intervals from 13/7/2015.

Age Related Reference Intervals:

< 1 week                  0.6- 1.0 mmol/L

1 wk - < 18 yrs      0.65-1.1 mmol/L