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Lab Dept:
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Chemistry
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Test Name:
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CLONIDINE LEVEL
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General Information
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Lab Order Codes:
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CLON
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Synonyms:
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Catapres®
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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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Clonidine level reported in
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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 - Sendouts
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Referred to:
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Mayo Medical Laboratories forward to MedTox Laboratories (Test# 91107)
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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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3 – 4 days
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Special Instructions:
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Trough levels are most reproducible.
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Specimen
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Specimen Type:
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Whole blood
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Container:
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Green top (Li Heparin) or Red top tube
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Draw Volume:
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15.0 mL (Minimum: 5.0 mL) blood
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Processed Volume:
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5.0 mL (Minimum: 1.2 mL) serum/plasma
Note: Submission of the minimum volume results in an elevated reporting limit and 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 vial. Indicate whether specimen is serum or plasma. 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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1.00 – 2.00 ng/mL
Sedation has been reported with Clonidine concentration greater than 1.5 ng/dL
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Critical Values:
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Toxic concentrations have not been established
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Limitations:
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0.25 ng/mL reporting limit
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Methodology:
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Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)
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Contraindications:
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N/A
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References:
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Mayo Medical Laboratory Web Page (June 2006) http://www.mayoreferenceservices.org/mrs/mml/index.asp
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MedTox Laboratories Web Page www.medtox.com
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Updates:
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3/11/04: Test will be forwarded to MedTox from Mayo Medical Laboratories due to primary reference lab status change.
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