Phenytoin (Dilantin)

Test Code

PHTN

Specimen Name

Phenytoin (Dilantin)

CPT Codes

  • 80185

Collect

SST-Serum, Red-top Also acceptable Lithium-Heparin Plasma.

Stability

4 days refrigerated

Volume

1 mL

Minimum Volume

0.5 mL

Performed

Performed as needed

Components

Additional Information

Draw SST or Red-Top, allow to clot completely, then centrifuge and separate into specimen transport tube. Lithium-Heparin is also acceptable, centrifuge and pour off into a specimen transport tube.

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Common Lab Definitions

  • Serum 
  • Plasma 
  • STT