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Test Code
This test is a lab developed test. For further information, see the Compliance Remarks section below.
Container TypeRed top tube (plain)
Supply Item Number1372
Specimen TypeSerum
Preferred Volume0.25 mL
Emergency Minimum Volume0.1 mL
Patient PrepTiming of specimen collection: Pre-dose (trough) draw - At steady state concentration.
Specimen ProcessingSeparate serum or plasma from cells within 2 hours of collection and transfer to a standard PAML aliquot tube.
Store and TransportRefrigerated
StabilityRefrigerated 2 weeks  Frozen (-20 °C) 1 month  
Unacceptable ConditionDO NOT use gel separator tubes (Corvac®, SST or equivalent) for the collection of blood samples for this test.
Alternate SpecimensLavender top tube (EDTA)
LimitationsAvoid repeat freeze/thaw cycles
Reference LaboratoryPAML
CPT Codes80173
Interface Order Code80713
Billing CodeHALP
Test ScheduleMon, Wed, Fri
Turnaround Time1-3 days
MethodTandem Mass Spectrometry
Reference Ranges
HaloperidolTherapeutic Range1-10ng/mL
Toxic> 10
Compliance RemarksThis test was developed and its performance characteristics determined by PAML. The U.S. Food and Drug Administration (FDA) has not approved or cleared this test. However, FDA approval or clearance is currently not required for clinical use of this test. The results are not intended to be used as the sole means for clinical diagnosis or patient management decisions. PAML is authorized under Clinical Laboratory Improvement Amendments (CLIA) to perform high-complexity testing.
NotesAdverse effects may include drowsiness, blurred vision, tardive dyskinesia, tachycardia, nausea and vomiting.

Interface Codes
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