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Test Code UMG24 Magnesium, 24 Hour, Urine

Additional Codes

Hospital Ordering Code

Lab406   Magnesium, 24 hour Urine

Specimen Requirements

Container/Tube Type: 

24 hour urine collection jug

 

Collection Information: 

Urine should be refrigerated during collection.

 

Transport Information: 

10.0 ml aliquot from a well mixed 24 hour collection

 

Remarks: 

Specimens collected between 22-26 hours will be accepted as 24 hour specimens.  Anything less than 22 hours or greater than 26 hours  will be ordered as a "Random" specimen and should include a Period and Volume measurement.

Specimen Transport Temperature

Refrigerated Stability: 

4 days

 

Frozen Stability: 

3 weeks

 

Ambient Stability: 

2 days

Performing Laboratory

Pathology Laboratory, UnityPoint Health, Des Moines

CPT

81050-Volume measurement for timed collection

83735-Magnesium

Methodology

Spectrophotometric

Day(s) Test Set Up

Performed: 

Monday - Friday; day shift

 

Analytical Time: 

8 hours

Special Instructions