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

Message
CHEMISTRY


Test Code
MAG


Alias/See Also
MG


Preferred Specimen
PLASMA


Minimum Volume
.5mLs


Other Acceptable Specimens
GOLD TOP SST TUBE


Instructions
COLLECT 1 LI HEP(LIGHT GREEN)TUBE, SPIN DOWN AND SEND TO LAB. CAN ALSO BE DONE OFF A GOLD TOP TUBE. LET CLOT FOR 30 MINUTES, SPIN DOWN AND SEND TO LAB. CAN ALSO BE DONE OFF OF A 24HR URINE SAMPLE IN A JUG PROVIDED MY LAB. MAKE SURE FULL NAME, FULL SSN, DATES/TIMES THAT PT STARTED AND STOPPED COLLECTION. MUST BE REFRIGERATED WHEN NOT PLACING URINE IN JUG. FIRST MORNING URINE OF FIRST MORNING VOID IN TOILET AS NORMAL. EVERYTHING AFTER THAT INCLUDING SECOND MORNINGS FIRST URINE NEEDS TO GO IN JUG.


Transport Container
ORIGINAL TUBES/ 24 HR URINE JUG


Transport Temperature
REFRIGERATED


Specimen Stability
Room temperature: 7 days
Refrigerated (2-8°C): 7 days
Frozen (-20°C or colder): 1 year


Methodology
Xylidyl Blue

Setup Schedule
DAILY


Report Available
DAILY


Reference Range
1.6 - 2.6 mg/dL


Clinical Significance
Magnesium measurements are used in the diagnosis and treatment of hypomagnesemia (abnormally low plasma levels of magnesium) and hypermagnesemia (abnormally high plasma levels of magnesium). Magnesium is decreased in chronic nephritis, acute pancreatitis, and alcoholic cirrhosis. It is increased in acute or chronic renal failure and Addison's Disease.


Performing Laboratory
WHITE RIVER JUNCTION VT VA- CHEMISTRY 802-295-9363 EXT: 5518, 5519



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.