Children's Mercy Kansas City
Name
Phenobarbital, serum

CMH Lab Section
Chemistry

Specimen Requirements
1-mL blood in a red or green top tube, no gel

Availability
STAT, Urgent, Routine

Turn Around Time
STAT: 1-hour
Routine: 2-4 hours

Special Instructions
Trough: draw immediately before dose
Peak: draw 1-hour post IV infusion

Methodology
Vitros

Ranges
Therapeutic: 15-40 mcg/mL
Toxic: >50 mcg/mL

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