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LORAZEPAM

Test Code
LOR
 
SynonymsAtivan
SPECIMEN REQUIREMENTS
Container TypeRed top tube (plain)
Supply Item Numberpicture1095
Specimen TypeSerum
Preferred Volume2 mL
Emergency Minimum Volume0.5 mL
Patient PrepTiming of specimen collection: Pre-dose (trough) draw - At steady state concentration.
Specimen ProcessingSeparate plasma or serum from cells ASAP or within 2 hours of collection and transfer to a standard PAML aliquot tube.
Store and TransportRefrigerated
StabilityRoom Temp 3 days  Refrigerated 2 weeks  Frozen (-20 °C) 2 weeks  
Unacceptable ConditionGel barrier tubes
Alternate SpecimensGreen top tube (heparin)
LimitationsAvoid the use of serum separator tubes and gels.
CPT Codes80346, (HCPCS G0480)
Interface Order Code80154.Z4
Billing CodeLOR.LCA
MethodQuantitative Liquid Chromatography/Tandem Mass Spectrometry
Reference Ranges
TitleDescriptorRangesUnits
LorazepamTherapeutic (Adult) dose 1-10 mg/d50-240ng/mL
Toxic> 300
Compliance RemarksThis test was developed and its performance characteristics determined by LabCorp. It has not been cleared or approved by the Food and Drug Administration.

Interface Codes
typeorder codetest descriptionresult coderesult descriptionunitsdecimal placesloinc code
o80154.Z4Lorazepam
r80154.Z4Lorazepam80154.Z4Lorazepamng/mL03724-2

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