Clinics and Departments

Laboratory Services

Lab Dept:

Chemistry

Test Name:

CLONIDINE LEVEL

General Information

Lab Order Codes:

CLON

Synonyms:

Catapres®

CPT Codes:

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

Test Includes:

Clonidine level reported in

Logistics

Test Indications:

N/A

Lab Testing Sections:

Chemistry - Sendouts

Referred to:

MedTox Laboratories (Test# 406)

Phone Numbers:

MIN Lab: 612-813-6280

STP Lab: 651-220-6550

Test Availability:

Daily, 24 hours

Turnaround Time:

3 – 4 days

Special Instructions:

Trough levels are most reproducible.

Specimen

Specimen Type:

Whole blood

Container:

Green top (Li Heparin) or Red top tube

Draw Volume:

15 mL (Minimum: 5 mL) blood

Processed Volume:

5 mL (Minimum: 1.2 mL) serum/plasma

Note: Submission of the minimum volume results in an elevated reporting limit and inability to repeat analysis.

Collection:

Routine venipuncture

Special Processing:

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.

Patient Preparation:

None

Sample Rejection:

Mislabeled or unlabeled specimens

Interpretive

Reference Range:

1.00 – 2.00 ng/mL

Sedation has been reported with Clonidine concentration greater than 1.5 ng/dL

Critical Values:

Toxic concentrations have not been established

Limitations:

0.25 ng/mL reporting limit

Methodology:

Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)

References:

MedTox Laboratories Web Page www.medtox.com June 2013

Updates:

3/11/04: Test will be forwarded to MedTox from Mayo Medical Laboratories due to primary reference lab status change.
2/15/13: Test now sent directly to MedTox.



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