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Test Code UMG Magnesium, 24-Hour, Urine

Performing Laboratory

Lima Memorial Health System Laboratory

Specimen Requirements

Preferred:
Container/Tube: Plastic urine container
Minimum Volume: 0.5ml 
Collection Instructions: Starting and ending times of collection are required. No preservative. Refrigerate specimen during collection, and send specimen refrigerated. 
Follow instructions in “Urine Collection” in “Special Instructions.” 

Reference Values

75-150 mg/24 hours

Specimen Stability

Refrigerate: 48 hours

Day(s) Test Set Up

Monday through Sunday

Methodology

Spectrophotometry (SP)

Test Classification and CPT Coding

81050 - Urine timed measurement
83735 - Magnesium