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okay well welcome to this video demonstration where weamp;#39;re going to run you through some of the issues youamp;#39;ll come up against if youamp;#39;re using point-of-care instant drug screening tests and the commonest issue we have coming up with these is the faint or thin or barely visible test lines when you come in to interpret these results so what we put together for you here is a range of negative test results I know looking at this initially youamp;#39;re going to think that the test on the the right thereamp;#39;s Alba donamp;#39;t test membrane here could be a positive test result what weamp;#39;re going to draw your attention to is that even if youamp;#39;ve got very thin and very faint test lines showing the presence of a control line you must interpret these as clear negative results so here starting from the left youamp;#39;ve got an MDMA membrane with a beautiful dark control line and comparatively almost identical test line showing a clear negative result o
