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Magnesium, Urine, 24 Hour (Urine Magnesium 24 Hr)

Test Code
UMG24


Preferred Specimen
1mL aliquot from a 24 hr urine collection acidified with HCL


Instructions
"Please note 24hr. total volume before aliquot Urine is collected with no preservative and an aliquot is acidified in the lab with HCL.
Testing Frequency: Daily"


Transport Temperature
Refrigerate


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Stability: 7 days Room temp, 7 days refrigerate12 mos. frozen


Methodology
Colorimetric(Dye-Methylthymol Blue)



The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.