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Test ID: PAIN    
Pain Clinic Survey 10, Urine

Useful For Suggests clinical disorders or settings where the test may be helpful

Detecting drug use involving amphetamines, barbiturates, benzodiazepines, cocaine, methadone, opiates, phencyclidine, propoxyphene, and tetrahydrocannabinol

 

This test is intended to be used in a setting where the test results can be used to make a definitive diagnosis.

Clinical Information Discusses physiology, pathophysiology, and general clinical aspects, as they relate to a laboratory test

This assay was designed to test for and confirm by gas chromatography-mass spectrometry (GC-MS) the following:

-Amphetamines

-Barbiturates

-Benzodiazepines

-Cocaine

-Methadone

-Phencyclidine

-Propoxyphene

-Opiates

-Tetrahydrocannabinol

 

This test uses the simple screening technique described under IDOAU / Drug Abuse Survey, Urine, which involves immunologic testing for drugs by class. Oxycodone is not detected well with the opiate screening assay; therefore, OPATU / Opiates, Urine is included to detect this drug. All positive screening results are confirmed by GC-MS, and quantitated, before a positive result is reported.

Reference Values Describes reference intervals and additional information for interpretation of test results. May include intervals based on age and sex when appropriate. Intervals are Mayo-derived, unless otherwise designated. If an interpretive report is provided, the reference value field will state this.

Negative

Screening cutoff concentrations

Amphetamines: 500 ng/mL

Barbiturates: 200 ng/mL

Benzodiazepines: 200 ng/mL

Cocaine (benzoylecgonine-cocaine metabolite): 150 ng/mL

Methadone: 300 ng/mL

Opiates: 300 ng/mL

Phencyclidine: 25 ng/mL

Propoxyphene: 300 ng/mL

Tetrahydrocannabinol carboxylic acid: 20 ng/mL

This report is intended for use in clinical monitoring or management of patients. It is not intended for use in employment-related testing.

Interpretation Provides information to assist in interpretation of the test results

A positive result derived by this testing indicates that the patient has used 1 of the drugs detected by this technique in the recent past. See individual tests (eg, AMPHU / Amphetamines, Urine) for more information.

 

For information about drug testing, including estimated detection times, see Drugs of Abuse Testing at http://www.mayomedicallaboratories.com/articles/drug-book/index.html

 

Creatinine and specific gravity are measured as indicators of specimen dilution.

Cautions Discusses conditions that may cause diagnostic confusion, including improper specimen collection and handling, inappropriate test selection, and interfering substances

Not intended for use in employment-related testing.

 

For situations where chain-of-custody is required, a Chain-of-Custody Kit (Supply T282) is available. See COCH / Chain-of-Custody Processing.

 

The test does not screen for drug classes other than those listed above. More comprehensive screening is available using the serum or urine drug screens (DSS / Drug Screen, Prescription/OTC, Serum or PDSU / Drug Screen, Prescription/OTC, Urine).

Clinical Reference Provides recommendations for further in-depth reading of a clinical nature

1. Physicians' Desk Reference (PDR). 60th edition. Montvale, NJ, Medical Economics Company, 2006

2. Goodman and Gilman's The Pharmacological Basis of Therapeutics. 11th edition. Edited by LL Bruntman. New York, McGraw-Hill Book Company, 2006

3. Langman LJ, Bechtel L, Holstege CP: Chapter 35. In Tietz Textbook of Clinical Chemistry and Molecular Diagnostics. Edited by CA Burtis, ER Ashwood, DE Bruns. WB Saunders Company, 2011, pp 1109-1188

Special Instructions and Forms Describes specimen collection and preparation information, test algorithms, and other information pertinent to test. Also includes pertinent information and consent forms to be used when requesting a particular test