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Clinical chemistry reagents intended to perform qualitative and/or quantitative chemical analysis in a sample of a body fluid (typically serum, plasma, or urine) to determine the magnesium electrolyte (Mg++) level. A low level of magnesium in serum or plasma (i.e., hypomagnesemia) is associated with impairment of the neuromuscular functions (e.g., convulsions, cardiac arrhythmias) but is not a reliable marker of magnesium deficiency by itself.
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