Specimen Requirements

Submit only 1 of the following specimens:

Plasma
Draw blood in a green-top (lithium heparin) tube(s). Spin down and send 1 mL (pediatric:  0.2 mL) of lithium heparin plasma. Plasma for a peak level should be drawn 30 minutes after completion of infusion of a 30-minute infusion or 15 minutes after a 1-hour infusion.
Note:  1. Date and time of draw and peak plasma are required on request form for processing.

2. Label specimens appropriately (corresponding draw time and as peak plasma).

Serum
Draw blood in a plain, red-top tube(s) or a serum gel tube(s). Spin down and send 1 mL (pediatric:  0.2 mL) of serum. Serum for a peak level should be drawn 30 minutes after completion of infusion of a 30-minute infusion or 15 minutes after a 1-hour infusion.

Note:  1. Date and time of draw and peak serum are required on request form for processing.

2. Label specimens appropriately (corresponding draw time and as peak serum).