A B C D E F G H I J K L M N O P Q R S T U V W X Y Z #

Magnesium, Serum

Test Code
MG


Preferred Specimen
Serum, 0.5 mL minimum


Transport Container
SST tube


Transport Temperature
Unspun specimen stable for 2 hours at room temp., separated serum stable for 2 days refrigerated


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross Hemolysis, Not spun within 2 hours of collection


Reference Range
See report for normal ranges. Critical Values: <0.8 or >5.0 mg/dL


Clinical Significance
Abnormal magnesium levels are often seen in conditions or diseases that cause excessive or impaired excretion of magnesium by the kidneys or that cause impaired absorption in the intestines. May also be used with calcium and phosporus testing to monitor calcium supplimentation.




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.