Specimen Requirement (s)

Specimen Type: Plasma (preferred) or serum

Container/Tube: Mint Green LiHep tube (preferred)– serum separator tube (SST) also acceptable.

Specimen Volume: 2 mL

Specimen Minimum Volume: 1 mL

Collection Instructions: Avoid hemolysis. Specimen collection timing is 60 minutes following oral (therapeutic) dose or 4 hours after overdose ingested (toxicity). If the specimen drawn for toxicity is an alert value, a second specimen should be drawn 4 hours after the first.