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Test ID NBLD0176 Magnesium, 24hr urine

Important Note

This test is Sent Out to Mayo.

See https://www.mayocliniclabs.com/test-catalog/Specimen/36886

AKA

MG,24HR UR

Specimen type/Requirements

24 hour Urine collection.  Submit an aliquot in a plastic, 5-mL tube.  24-hour volume is required.

Specimen Volume

Preferred Volume 4.0 mL
Minimum Volume 1.0 mL

 

Stability/Transport

Room Temperature 72 hours
Refrigerated (preferred) 14 days
Frozen 14 days

 

Performed Test Frequency

Monday-Sunday

Methodology

Colormetric Endpoint Assay

Performing Lab

Mayo Clinic Laboratories in Rochester

CPT

83735

Instructions

Specimens coming from outreach labs should be measured and aliqouted.
Note the total volume on the aliqout tube.

See:  https://www.mayocliniclabs.com/test-catalog/Specimen/36886  for proper 24 hour urine instructions and Urine Preservative Collection Options.