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HelpTest Code PHNO PHENOBARBITAL LEVEL
Performing Location
Collection Instructions
Refer to Venipuncture Protocol
Steady state: 10-25 days in adults and adolescents
8-15 days in infants and children
Trough: draw immediately prior to next oral dose
Collection Container
Gold top or Marble Red top vacutainer
Specimen Required/Volume
1.0 mL
Specimen Type
serum
Turn-Around Guidelines
Upon arrival daily
Reference Values
15.0 – 40.0 ug/mL
Toxic levels: > 50 ug/mL
Method
VITROS5600-Enzyme Heterogeneous Competitive Immunoassay
CPT
80184
LOINC
3948-7
Special Handling
Note special drawing times