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.”
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