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Phenytoin (Dilantin), Free

Specimen Container

1 red

Specimen Collection Type

Serum

Minimum Volume To Collect (Ml)

2 mL

Specimen Preparation

Separate < 2hrs

Stability

Ambient Stability: 4 days
Refrig Stability: 4 days
Frozen Stability: 1 Month

Unacceptable Conditions

Citrated plasma. Serum separator tubes (SST). Tubes that contain liquid anticoagulant.

Preferred Transportation Temperature

REFRIGERATED

Remarks

COLLECTION!
Timing of specimen collection: Pre-dose (trough) draw – At steady state concentration

Performed

Sun-Sat

Reported

1-4 days

Methodology

Quantitative Enzyme Multiplied Immunoassay Technique

Lab Department

Core

Testing Location

IHC

Synonyms

Dilantin-125
Dilantin®
Free Phenytoin
Phenytek

Test OR Panel

Test

Additional Requirements

TIME

Unit of Measurement

µg/mL

CPT Codes

80186

LOINC

3969-3

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