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HelpEpic Code LAB812 Lorazepam Level
Test Name Alias
Ativan | 4016
Interface Order Alias
10418
Collection Instructions
Specimen Collection: Blood
Container(s): Gray Top (Potassium Oxalate and Sodium Fluoride) or Red top (no additive)
Preferred Volume to Collect: 3.0 mL
Minimum Volume to Collect: 1.0 mL
Neonate Volume to Collect: 1.0 mL
Capillary collect ok? Yes
Microtainer acceptable? Yes
Collection Instructions:
- After collection, gently invert tube 8-10 times.
- Gray Top is preferred tube.
- Specimen should be processed – See Processing Instructions.
Processing Instructions (Laboratory, Outpatient or Off-site collection)
Processed Specimen: Plasma or Serum
Centrifuge/Spin: Yes
Aliquot: Yes
Processing Instructions:
- Gray top:
- Centrifuge after collection
- Pipette plasma into aliquot tubes
- Red top:
- When tubes are clotted (30-45 minutes), centrifuge specimens
- Pipette serum into aliquot tube
Minimum plasma/serum volume: 0.5 mL
Transport Temperature: Ambient
Specimen Stability
Ambient: 72 hours
Refrigerate: 7 days
Frozen: 14 days
Laboratory Retention: 7 days
Test Frequency
Available 24 hours, usual TAT 1-3 days.
STAT TAT 4 hours.
Reference Range
Steady state plasma concentrations after chronic daily dosing: 50 – 240 ng/mL
Performing Department
Toxicology
Performing Department Laboratory Location
Corewell Health Reference Laboratory, Grand Rapids, MI
Methodology
Liquid Chromatography-Mass Spectrometry
This test was developed and its performance characteristics determined by Spectrum Health Toxicology Laboratory. It has not been cleared or approved by the FDA. The laboratory is regulated under CLIA as qualified to perform high-complexity testing. This test is used for clinical purposes. It should not be regarded as investigational or for research.
CPT
80346, G0480
CDM Code
3018034607
Epic Test ID
1230100895
LOINC
Lorazepam Lvl: 3724-2
Mayo Access Code
SHO4016
Additional Information
Gold Top SST not acceptable
Reviewed Date
2/15/2023