Table 2.

List of available magnesium detection tests with significances

Laboratory tests	Importance
Red blood cell magnesium concentration	Reflect the actual magnesium status
Non-invasive intracellular mineral-electrolyte analysis (EXA)	To detect tissue level of magnesium
Hair mineral analysis test	Indicates the overall body chemistry and health status
Serum magnesium level	Less likely related with body magnesium content because it represent only 0.3%
24 h excretion in urine or fractional excretion	More than 10–30 mg in 24 h excretion or above 2% in fractional excretion indicates renal wasting
Magnesium loading test	For the assessment of Intestinal and bone status of magnesium
Isotopic analysis of magnesium	26Mg was used to evaluate absorption of magnesium from the gastrointestinal tract, But its limited to research purposes
Serum magnesium/calcium quotient	Sensitive indicator of magnesium status and turn over