Magnesium, Timed Urine


Sunquest Code:UMGT  
Epic Code:LAB3842Epic Name:Magnesium Timed Urine
Order Instructions:Order UCRT in addition to UMGT. Enter collection volume and duration.
Synonyms:UMGT
Methodology:Bichromatic end point
CPT Code:----------CPTCODES HERE----------
Test Includes:Urine magnesium and creatinine.
Turnaround Time:Performed and reported 24 hours/day.
Associated Links:

Urine Collection Procedure



Collection Instructions

Specimen:Urine, timed collection (20-28 hours)
Optimal Volume:Submit entire collection; analysis requires 1 mL


Processing and Shipping

Specimen Processing:Mix collection well before aliquot is taken. Aliquot 5 mL, 1 mL minimum. Store in refrigerator.
Shipping Instructions:Ship at refrigerated temperature.
Test Performed at or Referral Lab Chemistry  (UMMC-West Bank, UMMC-East Bank)


Interpretive

Reference Range:73-122 mg/24 hours
Use:As an index of repletion of magnesium deficiency in hypomagnesemia; to rule out renal magnesium wasting.


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