Sample Requirements:
Red top, no gel
Purpose:
Measures blood levels of the anticonvulsant phenytoin.
High Levels:
Toxic effects: nystagmus, ataxia, confusion.
Low Levels:
May not control seizures effectively.
Reference Range:
10–20 µg/mL
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All Lab Tests
Phenytoin (Dilantin)
Test Code:
PDL0569
Division:
Toxicology
CPT Code:
80185
Sample Type:
Serum