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Lab Dept:
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Chemistry
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Test Name:
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ROHYPNOL LEVEL, SERUM
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General Information
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Lab Order Codes:
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ROHS
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Synonyms:
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Flunitrazepam; Date Rape Pill; Roach-2; Roofenol; Roffies
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CPT Codes:
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82542 – Column chromatography/mass spectrometry, analyte not elsewhere specified, quantitative, single stationary and mobile phase
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Test Includes:
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Rohypnol level measured in ng/mL.
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Logistics
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Test Indications:
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N/A
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Lab Testing Sections:
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Chemistry
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Referred to:
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MedTox Laboratories (Test# 438)
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Phone Numbers:
Minneapolis:
Saint Paul:
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612-813-6280
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651-220-6550
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Test Availability:
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Daily, 24 hours
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Turnaround Time:
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1-2 days
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Special Instructions:
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N/A
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Specimen
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Specimen Type:
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Blood
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Container:
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Green (Li Heparin) top or Red top tube
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Draw Volume:
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6 mL (Minimum: 4.5 mL) blood
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Processed Volume:
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2 mL (Minimum: 1.2 mL) blood
Note: Submission of the minimum volume results in an elevated reporting limit and the inability to repeat analysis.
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Collection:
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Routine venipuncture
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Special Processing:
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Lab Staff: Centrifuge specimen, remove serum/plasma aliquot into a screw-capped round bottom plastic vial. Store and ship at refrigerated temperatures. Forward promptly.
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Patient Preparation:
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None
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Sample Rejection:
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Mislabeled or unlabeled specimens
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Interpretive
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Reference Range:
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Peak plasma rohypnol concentrations in patients receiving chronic, recommended dosages: 10-20 ng/mL
Note: Rohypnol/Flunitrazepam is not legally marketed in the United States.
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Critical Values:
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>50 ng./mL
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Limitations:
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Reporting limit: 5 ng/mL
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Methodology:
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Gas chromatography/Mass spectrometry (GC/MS)
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References:
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MedTox Laboratories May 2010
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