Specimen Requirements

Submit only 1 of the following specimens:

Plasma

Container/Tube: Light green-top (lithium heparin) tube

Specimen: 1 mL of lithium heparin plasma

Transport Temperature: Ambient

Collection Instructions: Draw blood specimen 2 hours after drug administration (peak) and just before next dose (trough).

Note: 1. Patient should be on medication for at least 2 to 4 days prior to dosage testing.

2. Indicate plasma.
3. Label specimen appropriately (plasma).

Serum

Container/Tube: Plain, red-top tube or serum gel tube

Specimen: 1 mL of serum

Transport Temperature: Ambient

Collection Instructions: Draw blood specimen 2 hours after drug administration (peak) and just before next dose (trough).

Note: 1. Patient should be on medication for at least 2 to 4 days prior to dosage testing.

2. Indicate serum.
3. Label specimen appropriately (serum).