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PHOS
PHOSPHORUS, SERUM

Test Code PHOS 
Test PHOSPHORUS, SERUM 
Methodology Spectrophotometry (SP) 
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 2.6 - 4.5 mg/dL

Critical value: Less than or equal to 1.0 mg/dL 

Analytic Time 1 Day - Available STAT 
Day(s) Test Set Up Monday through Sunday 
CPT Code(s) 84100