Test Code DIL Phenytoin, Total, Plasma or Serum
Additional Codes
Ordering Mnemonic |
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DIL |
Methodology
Homogeneous enzyme Immunoassay
Performing Laboratory
Holland Hospital Laboratory Services
Specimen Requirements
Submit only 1 of the following specimens:
Plasma
Container/Tube: Mint-top (lithium heparin) tube
Specimen Volume: 1 mL of plasma
Collection Instructions:
Trough - Draw 30 minutes before AM dose.
Peak - Draw 2-4 hours after an intravenous loading dose.
Note: 1. Indicate plasma.
2. Label specimen appropriately (plasma).
Serum
Container/Tube: Serum gel tube
Specimen Volume: 1 mL of serum
Collection Instructions:
Trough - Draw 30 minutes before AM dose.
Peak - Draw 2-4 hours after an intravenous loading dose.
Note: 1. Indicate serum.
2. Label specimen appropriately (serum).
Specimen Transport Temperature
Refrigerate
Day(s) Test Set Up
Monday through Sunday
Available STAT
Test Classification and CPT Coding
80185 (HH Bill Code 0205048)
Reference Values
Therapeutic concentration: 10-20 µg/mL
Toxic concentration (automatic call-back): ≥30 µg/mL