Magnesium

Test Code
MAG


CPT Codes
83735

Preferred Specimen
1.0 mL serum


Transport Container
Gold top tube//Serum Separator Tube.


Transport Temperature
Room temperature or refrigerate.


Methodology
Colorimetric Assay

Reference Range
1.7-2.6 mg/dL


Clinical Significance
Increased serum magnesiun concentrations occur in renal failure, acute diabetic acidosis, dehydration, or Addison's disease.  Hypermagnesium has a depressing effect on the central nervous system, causing general anesthesia and respiratory failure.  It alters the conduction mechanism of the heart, causing cardiac arrest.  Hypomagnesium may be observed in chronic alcoholism, malabsorption, severe diarrhea, acute pancreatitis, diuretic therapy, prolonged parenteral fluid theraphy without magnesium supplementation, and kidney disorders such as glomerulonephritis and tubular reabsorption defects.  Decreased serum magnesium concentrations may result in tetany, convulsions, and cardiac arrhythmias.




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.