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A member asked:
My girlfriend is 6 days late now and is usually regular. she took a test on days 4/5 of being late and they were both neg. how accurate are the tests?
A doctor has provided 1 answer
They vary: 6 days late is pretty good for the timing. In lab conditions they are over 95% accurate, but if the urine is too dilute, or if the test isn't done exactly right, then the false negative rate can be up to 10 times more.
Answered 10/30/2015
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