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MG
MAGNESIUM, SERUM

Test Code MG 
Test MAGNESIUM, SERUM 
Methodology Spectrophotometry (SP) 
Description Useful for identification of malabsorption disorders, pancreatitis, and abnormalities associated with renal clearance, drug therapy, and for monitoring treatment of toxemia of pregnancy. 
Specimen Draw blood in either a plain, red-top tube or serum gel tube. (HEMOLYZED SPECIMEN IS NOT ACCEPTABLE.) Spin down and send 1.0 mL (minimum volume: 0.3 mL) of serum refrigerated. 
MMC Specimen Draw blood in a plasma gel tube. (HEMOLYZED SPECIMEN IS NOT ACCEPTABLE.) 1.0 mL (0.3 mL minimum) of plasma required. 
Reference Values 1.6 - 2.8 mg/dL

Critical value: <=1.0 mg/dL or >=9.5 mg/dL 

Analytic Time 1 Day - Available STAT 
Day(s) Test Set Up Monday through Sunday 
CPT Code(s) 83735