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CERNER / EPIC MNEMONIC / POE DESCRIPTION / CPT CODE / TEST INFORMATION / DAYS PERFORMED / TURNAROUND TIME / SPECIAL INSTRUCTIONS / CONTAINER TYPE / SPECIMEN REQUIREMENTS / MINIMUM VOLUME / REFERENCE RANGE / METHODOLOGY / CRITICAL VALUES / TEST SYNONYM(S)

Phenobarbital, Serum (View in report form.)

CERNER / EPIC MNEMONIC: PHEN
POE DESCRIPTION: PHENOBARBITAL; PHENOBARB
CPT CODE: 80184
TEST INFORMATION: Optimal sampling time is at trough, just before the next dose. Use with primidone levels to monitor therapeutic drug levels of primidone.
DAYS PERFORMED: Daily, 24 hours
TURNAROUND TIME: Routine: 4 hours; stat: 1 hour
SPECIAL INSTRUCTIONS: Level may increase when phenytoin is given.
CONTAINER TYPE: Red top tube - 4 mL
SPECIMEN REQUIREMENTS:

4.0 mL blood (2.0 mL serum)

MINIMUM VOLUME: 1.0 mL blood (0.2 mL serum)
REFERENCE RANGE: Therapeutic: 15-40 µg/mL
METHODOLOGY:

Enzyme Immunoassay

CRITICAL VALUES: >50 µg/mL
TEST SYNONYM(S):Luminal.; Phenobarb; Phenobarbital Level, Blood

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