We are experiencing higher than usual volumes at our ER. Please see the wait times here.
Search All

Lab Test Dictionary

Amitriptyline (423)

Methodology

Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)


Synonyms

Triavil; Amitriptyline and Metabolite; Limbitrol; Endep; Elavil; Etrafon; Amitril, Amitryptyline

Specimen Type

Serum or Plasma

Performing Lab

Quest Diagnostics Valencia


Epic ID

LAB4026

Lab Test Days

Tuesday-Saturday

Standard TAT

2-4 Days


Collection Information

Specimen Required

3-6 mL Blood

Container Type

Red Top (No Additive)

Collection Instructions

Plasma collected in an EDTA (lavender-top), sodium heparin (dark green-top) or lithium heparin (dark green-top) are also acceptable. Collect at steady-state trough concentration. Specimen should be collected >12 hours after dose.


Processing Information - Lab Use Only

Transport Temperature

Refrigerate-Only

Specimen Stability

Room Temp: 5 Days; Refrigerated: 7 Days; Frozen: Not Estabilished

Rejection Criteria

Gross hemolysis; Gel barrier/Serum Separator Tube (SST)

Test Volume Required

3 mL Serum

Minimum Test Volume

1.5 mL Serum


Included Tests

Amitriptyline, Nortriptyline and Total


CPT Codes

80335


Revised

02-09-17

Initials

SL