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PRMB-M
PRIMIDONE AND PHENOBARBITAL SERUM

Test Code PRMB-M 
Test PRIMIDONE AND PHENOBARBITAL SERUM 
Methodology PRIMD: Immunoassay
PBR: Kinetic Interaction of Microparticles in a Solution (KIMS) 
Description Useful for Assessing compliance, monitoring for appropriate therapeutic levels of primidone and phenobarbital, assessing toxicity 
Specimen Draw blood in a plain red-top tube or serum gel tube. Spin down and send 0.5 mL (minimum 0.25 mL), in a plastic transfer tube refrigerated. 
Reference Values Primidone
Therapeutic: 5.0-12.0 mcg/mL
Critical value: > or =15.0 mcg/mL

Phenobarbital
Therapeutic: 10.0-40.0 mcg/mL
Critical value: > or =60.0 mcg/mL 
Analytic Time 1 Day 
Day(s) Test Set Up Monday through Friday 
CPT Code(s) 80184  PBR
80188  PRIMD