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From: Robert Swotinsky MD
Password: orange
Date: 02 Dec 2007
Time: 15:57:41 -0800
Remote Name: 71.233.246.147
If you are committed to on-site tests (as opposed to sending all specimens out for laboratory-based testing), then you should include specimen validity tests as part of the on-site screen. A number of dipstick-type validity test strips are available and cost very little. Any specimen that screens positive for drugs or has out-of-range validity test results on-site would be sent out for laboratory-based testing.