Hold the tip of the test in the urine stream for 10 seconds or dip the test into the urine sample for 10 seconds. Test results must be read at 5 minutes. Though a positive result should not change for several days, a negative result may change to a false positive within minutes after the end of the testing period, which would not be an accurate reading. It is always best to read the results at the 5 minute testing period and then discard the test to avoid confusion.
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