What does a positive reading look like with the Q.E.D.® test?

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What does a positive reading look like with the Q.E.D.® test?

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When a Q.E.D.® test result is positive, a dark purple color bar forms within the measurement scale. This color is distinctly darker than the pink or orange color seen as the sample fills the device. The color bar on a positive test — the same color seen in the QA Spot™ — develops within 2 minutes.

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