Skip to main content

Specimen Collection Manual and Test Catalog

  or
  or
  or

MAGNESIUM, RANDOM URINE (WITH CREATININE) AA

Geisinger Epic Procedure Code:  LAB2647    Geisinger Epic ID:  46337

SPECIMEN COLLECTION
Specimen type: 

Preserved random urine


Preferred collection container: 
Specimen required: 

10 mL of a well-mixed, preserved random urine


Special notes: 

Please submit 10 mL of a well-mixed random urine. Adjust pH to < 3.0 with 6N HCl before aliquoting for testing. Refrigerate during and after collection.



SPECIMEN PROCESSING
Transport temperature: 

Refrigerated.


Specimen stability: 

Room temperature: 4 days. Refrigerated: 7 days. Frozen: 90 days.



TEST DETAILS
CPT code(s):  82570, 83735
Note: The billing party has sole responsibility for CPT coding.  Any questions regarding coding should be directed to the payer being billed.
The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only.

Test includes: 

Creatinine.


Methodology: 
Atomic Absorption Spectrophotometry (AAS)
Synonyms: 

Quest test code 14460, MAGRU


Clinical significance: 

Urinary magnesium concentrations often decline before serum concentrations. Adverse effects, such as cardiac arrhythmias, can be observed while serum concentrations are within range.


Review Date:  12/05/2024

Performing Locations