Lab Test : Magnesium, Urine

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Alternate:Urine Magnesium; Mg
Phone:(937) 641-3428
Available:Daily, 24 hours
Turnaround:Routine: 3 hours, STAT: 30 minutes
Specimen:Urine, random or timed
Volume:0.1 mL
Container:Clean plastic urine collection container with lid
Temperature:Refrigerate during collection (24 hour urines) or if not transported to laboratory within 1 hour (random).
Rejection:Contaminated with feces or contact with metal.
Normal:1.0-13.0 mg/dL
Uses:Magnesium is an essential element which is cleared by the kidneys; normal daily excretion of magnesium is equivalent to the amount taken in with the diet.
Limitations:Increased blood alcohol levels increases urinary magnesium excretion.
Method:Dye binding biochromatic endpoint

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