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Vanderbilt Pathology Laboratory Services

Test Directory



PRIMIDONE BLOOD (PMD)

Department: Toxicology
Test Synonym(s): Mysoline, PMD
Test Components: Primidone and Phenobarbital
CPT Codes: 80188
Methodology: Emit Homogenous Enzyme Immunoassay
Reference Range: 0-150 yrs: Therapeutic range: 5.0 - 12.0 mcg/mL
Tube Type: Dark green top (Sodium Heparin) tube - 6.0 mL
Specimen: Plasma
Pediatric Requirements: 2 dark green top microtainers
Volume: 1.5 mL plasma
Minimum Volume: 0.4 mL plasma
Temperature: Refrigerated 2-8C if not delivered to the lab immediately
Stability: Refrigerated: 2 days, frozen at -20 C for longer storage
Reasons for Rejection: Hemolysis, low volume
Days Performed: Daily
Times Performed: Continuous
TAT: Stat: 1 hour, routine: 2 hours
Special Instructions: Draw immediately before next dose. Refrigerate if not delivered immediately.

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