591

Test CODE NAME

591

Ethosuximide/Zarontin Serum or Plasma

Methodology: Enzyme Immunoassay
Performed: Tue,Wed,Sat
Reported: 2-6 days
Specimen Required: Patient Preparation: Timing of specimen collection: Pre-dose (trough) draw - At steady state concentration. 
Collect: Plain Red OR  Lavender (K2 or K3EDTA) - 1 ml serum or plasma.
Specimen Preparation: Allow specimen to clot completely at room temperature . Separate serum or plasma from cells ASAP or within 2 hours of collection. Transfer serum or plasma to a Standard Transport Tube.
Storage/Transport Temperature: Refrigerated.
Unacceptable Conditions: Whole blood. Gel separator tubes, light blue (citrate), or yellow (SPS or ACD solution). 
Stability: After separation from cells:  Refrigerated: 1 week; Frozen: 1 month
Note: This test is approved for NY .
Performing Lab 
ARUP Laboratory
CPT Code(s): 80168