Magnesium, 24-hour Urine

Specimen Requirements

5.0 mL aliquot from a well mixed 24 hour Urine Collection in a Plastic Container

Transport And Storage

7 days Refrigerated

Collection Instructions

1. When starting the 24-hour period, urinate and discard (throw-away) this specimen. NOTE THE TIME
2. From that time on, collect all urine by urinating into a clean container and transfer into the provided container. 
DO NOT URINATE DIRECTLY INTO CONTAINER.
3. Try to pass the last urine just prior to the end of the 24 hour period. Add this urine into the container. 
4. Urine Specimen should be kept refrigerated during and after collection. 

Printable Patient Collection Instructions

English 24 Hour Urine Collection

Spanish 24 Hour Urine Collection 

Burmese 24 Hour Urine Collection

Arabic 24 Hour Urine Collection 

Minimum Volume

1.0 mL

Neonatal Volume

Reference Range:

24 - 255 mg/24 hr

Methodology:

• Colorimetric

CDM

01426306

CPT Coding

83735

Medical Necessity May Apply