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Phenytoin

Laboratory - : Chemistry

Test ID :
PHENY
Test Workstation :
MACH3
Specimen Type:
Blood
Tube Type:
Green top (lithium heparin) tube
Collection Volume:
500 uL microtainer; 1.5 mL macrotainer
Minimum Volume:
500 uL microtainer; 1.5 mL macrotainer
Preferred Volume:
500 uL microtainer; 1.5 mL macrotainer
Storage:
Shipping: Send Refrigerated; Storage: Refrigerated: 4 days; Room Temperature: 4 days; Frozen: 1 month
Availability:
24 Hours/ 7 days/week
Methodology:
Roche-KIMS
Special Instructions:
For therapeutic monitoring, draw peak levels 24 hours postIV infusion(loading dose) or 39 hours postoral ingestion and trough levels immediately prior to next dose. Please indicate whether the specimen is a peak, trough, or random specimen. Due to the observed crossreactivity of this assay to fosphenytoin, it is recommended that samples for serum phenytoin measurements be collected at least 2 hours after an intravenous dose of fosphenytoin and at least 4 hours after an intramuscular dose.
Lab/Phone:
330-746-9623
TAT:
1 hour
Additional Info:
Therapeutic range: 10.0-20.0 ug/mL
CPT Code:
80185
Synonyms:
Dilantin; Diphenylhydrantoin

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