PHENYTOIN

Test Code

DILA (OE & LAB)

Alias/See Also

DILANTIN

CPT Codes
80185

Preferred Specimen

1 Red Tube

Patient Preparation
None

Minimum Volume

1 mL

Other Acceptable Specimens

1 Green tube (Lithium Heparin)

Instructions

Centrifuge for complete separation of serum or plasma from red cells.

Transport Container

RED tube

Transport Temperature

Room Temperature

Specimen Stability

2-8°C up to 3 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Hemolysis interferes

Methodology
EIA

Setup Schedule

DAILY, as received

Report Available

STAT: <60 minutes
Routine: <4 hours

Reference Range

Male/Female All Ages: Normal Range: 10.0-20.0 ug/mL Critical High : >=20.0 ug/mL

Clinical Significance

Phenytoin is a medicine used to treat convulsions and seizures. Phenytoin levels are monitored to assure adequate therapeutic levels are achieved and to avoid toxicity.

Performing Laboratory
Mount Sinai Hospital
Holy Cross Hospital

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.