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Test Code LAB10806 MAGNESIUM, IONIZED, WHOLE BLOOD

Day(s) Performed

Performed: Daily

Routine TAT: Same Day

Available as a STAT test

Intended Use

iMg is crucial for cardiac automatism and is a promising biomarker in emergency medicine, particularly for atrial fibrillation. It helps identify patients at risk for arrhythmias.

Clinical Summary

Ionized magnesium (iMg) is used to assess the active form of magnesium in the body, which is crucial for various physiological functions. It's a more sensitive indicator of actual magnesium availability at the cellular level and is vital for electrolyte balance. 

Specimen Collection and Handling

Collect Dark green - Whole blood Lithium Heparin.

 

Storage: Assay within 2 hours - Do not put on ice Store capped at room temperature 20-25˚C for up to 6 hours.