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

Test Code
MG


CPT Codes
83735

Preferred Specimen
GREEN Lithium Heparin Plasma


Minimum Volume
0.25 mL


Other Acceptable Specimens
SST Serum Separator, Red No Gel


Instructions
Separate from cells within 1 hour of collection


Transport Container
GREEN Lithium Heparin


Transport Temperature
Room Temperature


Specimen Stability
Room Temp: 7 Days; Refrigerated: 7 Days


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Not separated from cells within 1 hour of collection, gross hemolysis


Methodology
Vitros 7600/3400

Reference Range
1.6-2.3 mg/dL; Critical : <1.2 or >5.0 mg/dL


Clinical Significance
Magnesium is predominantly an intracellular cation and is essential in enzyme reactions. Magnesium deficiency may cause weakness, tremors, tetany, and convulsions. Hypomagnesemia is associated with hypocalcemia, alcoholism, some types of malnutrition, malabsorption, chronic hemodialysis, and pregnancy. Increased serum magnesium concentrations occur in patients with renal failure, dehydration, and Addison’s disease.


Performed By
RFGH Laboratory

Performing Laboratory
RFGH Laboratory



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.