Specimen Requirements

Title

Hydroxyzine and Metabolite

Specimen Requirement

Collect Red top or Lavender EDTA. Centrifuge and transfer 1 mL serum or plasma to a transport tube, indicate specimen type on tube.  Do not collect SST.

Methodology

High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS)

Stability

Room temp: 30 days, Refrigerated: 30 days, Frozen: 2 years

Reference Range

By Report*

Turnaround

5-7 days

Clinical Use

Therapeutic drug monitoring.

Test Code

HYDCE