CPT Code(s):

• 80162

Preferred Specimen:

1 mL serum collected in a red-top tube (no gel)

Minimum Volume:

0.5 mL

Patient Preparation:

Collect as a trough just prior to next dose

Transport Container:

Plastic screw-cap vial

Transport Temperature Name:

Refrigerate

Specimen Stability Components:

• Refrigerated: 7 days

Testing Schedule:

Daily

Methodology:

EIA

Reference Range:

0.8 Ð 2.0 ng/mL

Reject Criteria:

Serum Separator Tube (SST)