Test Details
Mnemonic
HALOP
Ordering Code
3420390
CPT-4 Code(s)
80173
Specimen Information
Patient Preparation
Collect sample 11 - 17 hours after last dose.
Collect
Red top
Specimen Preparation
Centrifuge, separate serum from cells and send 1.0 mL serum refrigerated in a screw capped plastic vial.
Alternate Specimen
Plasma: Lavender EDTA, green sodium and lithium heparin
Minimum Volume
0.5 mL
Transport Temperature
Refrigerated
Rejection Criteria
Gel barrier tubes
Lipemic samples, citrated plasma, gross hemolysis
Lipemic samples, citrated plasma, gross hemolysis
Stability
Room temperature: 2 days
Refrigerated: 7 days
Frozen: 1 month
Refrigerated: 7 days
Frozen: 1 month
Methodology
Quantitative Liquid Chromatography/Tandem Mass Spectrometry
Reference Range
5 - 15 ng/mL
Performing Laboratory
Quest Valencia
New York DOH Approval Status
Yes