Topic: Doctor Defends Use of Urine Drug Tests

Topic: Doctor Defends Use of Urine Drug Tests

A prominent pain doctor is disputing reports that a widely used urine drug test often gives faulty results.



“They are reasonably reliable and highly cost effective for use in a pain management practice. I would strongly recommend the practitioners use this,” said Laxmaiah Manchikanti, MD, chairman and CEO of the American Society of Interventional Pain Physicians.

Dr. Manchikanti, who is medical director of a pain clinic in Paducah, Kentucky, was the lead author of a study published in the journal Pain Physician in 2011, which looked at the reliability of immunoassay “point-of-care” (POC) tests. The urine tests are inexpensive and give immediate results, and doctors often use them to monitor their patients for opioid or illicit drug use.



“The UDT (urine drug test) with immunoassay in an office setting is appropriate, convenient and cost effective. Compared with laboratory testing for opioids and illicit drugs, immunoassay office testing had high specificity and agreement,” Manchikanti's study found.

Pain News Network recently reported on the results of a second study conducted by Millennium Health, a San Diego-based drug testing laboratory, which found that POC tests were wrong about half the time – frequently giving false positive and false negatives results for drugs like marijuana and oxycodone. The Millennium study advocates the use of chromatography-mass-spectrometry – a more complex laboratory test that costs thousands of dollars – to confirm POC test results.

“Following the advice from companies in reference to numerous expensive tests and also income generating avenues will only lead to time in the slammer and will not improve patient care at all,” said Manchikanti.



“(The) Millennium study is performed by the company which makes a living by testing. The more samples that are sent to them, the better off they are. Further, they are not even a practical setting. From our practice we send approximately only 2% of the samples for confirmation testing. Even then, the patients can’t pay their bills.”



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