Pathology Handbook

New search

Magnesium

Laboratory:

Clinical Biochemistry

Test Code:

Specimen Types:

Blood

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

Assay Frequency:

Daily

Additional Notes:

Reference Intervals (Adult 18 yrs+):

0.70 -1.10 mmol/L

R.I 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

Test performed on Abbott Alinity