Thursday, September 6th, 2018

How accurate is a “Point of Care” drug test device/kit?


If you use a high quality “Point of Care” drug test device/kit, then they tend to be highly accurate by default. It should be noted that overall accuracy must include sensitivity and specificity and be calculated with both “positives” and “negatives”. E.g. You can have a strip that is claimed to be 100% accurate for “positives” because it is using a very high cut-off (i.e. low sensitivity) and cross-reacts to many “compounds” (i.e. low specificity). However – this strip would miss many “lower end positives” and can therefore impact on the integrity and effectiveness of the testing process and that of the Policy.

Accuracy, specificity and sensitivity figures, other important information and specification can be found on the ITS “Point of Care” drug test device/kit product insert contained in every box or available on request. Each strip and cut-off will have different data, so this will impact on the average overall accuracy depending on which combination of drugs are being tested for.


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