Magnesium, Urine, Random

Specimen Type = Urine Tube Yellow Top

Specimen Type

Test ID   LAB5195
EPIC ORDER
   MAGNESIUM, RANDOM URINE
CPT Code(s)   83735
Group/Individual Test   Individual
Laboratory   Core Laboratory
Tube Station   Routine 30; STAT 888
Specimen Routine:

10 mL Random Urine in Yellow Top Urine Tube (No Preservative/Additive); See comments

10 mL Random Urine in sterile collection container is acceptable if refrigerated.
  micro: 1 mL random urine in Yellow Top Urine Tube (No Preservative/Additive).
Stability
Room temperature: 4 hours
Refrigerator: 7 days: Acidify to pH 1 if not testing immediately
Frozen: 12 months
Availability 24 hr/day
Turnaround Time   Routine: 2 hrs
STAT: 1 hr
Reference Range Normal: Undefined, varies with Diet
Comments Other clinical data should be taken into consideration when interpreting these results.

Reviewed by J. Carr on January 02, 2026

UNC Hospitals
McLendon Clinical Laboratories
101 Manning Drive
Chapel Hill, NC 27514