Test Details
Mnemonic
AMITR
Ordering Code
1750320
CPT-4 Code(s)
80335 (G0480)
Specimen Information
Collect
Red top
Specimen Preparation
Centrifuge and separate from cells within 8 hours. Send 1.0 mL serum in a screw capped plastic vial.
Alternate Specimen
Plasma: Lavender EDTA, potassium oxalate, gray sodium fluoride
Minimum Volume
0.5 mL
Transport Temperature
Refrigerated
Rejection Criteria
Serum separator tube (SST)
Stability
Room Temperature: 48 hours
Refrigerated: 14 days
Frozen: 14 days
Refrigerated: 14 days
Frozen: 14 days
Methodology
High Performance Liquid Chromatography
Reference Range
Amitriptyline + Nortriptyline
Therapeutic: 90 – 250 ng/mL
Toxic: >500 ng/mL
Therapeutic: 90 – 250 ng/mL
Toxic: >500 ng/mL
Performing Laboratory
Warde Medical Laboratory
New York DOH Approval Status
No