Quetiapine, Serum/Plasma

Test Code: TD_5255
CPT Code(s): 80342

$99

Test Details

Alternative Name(s)

Seroquel

Test Includes

Quetiapine, Serum/Plasma

Methodology

Liquid chromatography-tandem mass spectrometry (LC-MS/MS)

Rejection Criteria

Samples collected in serum separator tube
Whole blood
Citrate (light blue top) plasma
ACD or SPS (yellow top) plasma

Reference Range(s)

Therapeutic Range (Trough): 100-1000 NG/ML
Toxic: >1000 NG/ML

Specimen Requirements

Preferred Specimen

Plain red top tube

Minimum Volume

0.5 mL serum

Sample Stability

1 day room temperature
2 weeks refrigerated
4 months frozen

Transport Temperature

Refrigerated

Collection Instructions

1 mL serum from a plain red top tube. Allow sample to clot in an upright position for at least 60 minutes, then centrifuge sample and transfer serum to a plastic transport tube within 2 hours of collection. Clearly label tube as serum from a plain red top tube. Refrigerate.

Alternative Specimen

Separate plasma from cells within 2 hours of collection. Transfer plasma to a plastic transport tube, clearly label tube as EDTA plasma plasma. Refrigerate.