CHLORPROMAZINE, SERUM OR PLASMA

Specimen Required
Draw blood in a plain red-top tube. Centrifuge, remove serum from cells and send 2.0 mL serum
(0.5 mL minimum) frozen in a screw-capped plastic vial.

Alternate Specimen
Plasma: EDTA, sodium heparin, potassium oxalate or sodium fluoride

Methodology
Quantitative Liquid Chromatography – Tandem Mass Spectrometry

Stability
Room temperature: Unacceptable; Refrigerated: 14 days; Frozen: 14 days

Reference Range
Therapeutic Range: 30 – 300 ng/mL
Toxic Level: >= 600 ng/mL

Performed
Monday

Turnaround Time9 - 11 days
Test CodeCHLPR
CPT-4 Code (s)
80342 (G0480)
LOINC Codes
Chlorpromazine, Serum or Plasma   3471-0  

Warde
Medical
Laboratory