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Magnesium, 24 hour urine

Test Code
24MG


CPT Codes
81050, 83735

Preferred Specimen
10 mL urine collected in 24-hour urine container.


Instructions
Submit an entire 24-hour urine collection in a urine container supplied. No preservative. Note: 1. Starting and ending times of collection and total volume are required on request form for processing. 2. See "Urine Collection" in "Special Instructins."


Transport Container
24-hour Urine Container


Transport Temperature
Refrigerate.


Methodology
Colorimetric Assay

Reference Range
12-292 mg/24 hr


Clinical Significance
Urinary magnesium concentrations often decline before serum concentrations. Adverse effects, suah as cardiac arrhythmias, can be observed while serum concentrations are with in range.




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.