Clinics and Departments

Laboratory Services

Lab Dept:

Chemistry

Test Name:

ROHYPNOL LEVEL, SERUM

General Information

Lab Order Codes:

ROHS

Synonyms:

Flunitrazepam; Date Rape Pill; Roach-2; Roofenol; Roffies

CPT Codes:

82542 – Column chromatography/mass spectrometry, analyte not elsewhere specified, quantitative, single stationary and mobile phase

Test Includes:

Rohypnol level measured in ng/mL.

Logistics

Test Indications:

N/A

Lab Testing Sections:

Chemistry

Referred to:

MedTox Laboratories (MedTox Test: 438)

Phone Numbers:

MIN Lab: 612-813-6280

STP Lab: 651-220-6550

Test Availability:

Daily, 24 hours

Turnaround Time:

1-2 days

Special Instructions:

N/A

Specimen

Specimen Type:

Blood

Container:

Green (Li Heparin) top or Red top tube

Draw Volume:

6 mL (Minimum: 4.5 mL) blood

Processed Volume:

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.

Collection:

Routine venipuncture

Special Processing:

Lab Staff: Centrifuge specimen, remove serum/plasma aliquot into a screw-capped round bottom plastic vial. Store and ship at refrigerated temperatures. Forward promptly.

Patient Preparation:

None

Sample Rejection:

Mislabeled or unlabeled specimens

Interpretive

Reference Range:

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.

Critical Values:

>50 ng./mL

Limitations:

Reporting limit: 5 ng/mL

Methodology:

Gas chromatography/Mass spectrometry (GC/MS)

References:

MedTox Laboratories May 2010



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