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BCH Order Code LAB406 Magnesium, 24 Hour, Urine

Performing Laboratory

Boulder Community Health

Specimen Requirements

Container/Tube: Plastic urine container

Specimen Volume: Entire 24-hour urine collection

Collection Instructions: No preservative. Refrigerate specimen during collection, and send specimen refrigerated.

Note: 1. Starting and ending times of collection are required.

2. Follow instructions in “Urine Collections” in Special Instructions.

Specimen Transport Temperature


Reference Values

73.0-122.0 mg/24 hours

Day(s) Test Set Up

Monday through Sunday

Test Classification and CPT Coding

81050-urine timed measurement


Special Instructions