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Can a drop of blood in the urine affect the result of a pregnancy test?
Good morning. I did a pregnancy test 19 days after negative intercourse. 24 days after intercourse I also did just then I had a withdrawal bleeding. The problem or not the problem was that taking urine in the pipette flew a dot of blood barely visible, tiny. And I poured urine from the pipette for the pregnancy test and that tiny dot flew out where the urine from the pregnancy test pipette is given. Did this drop of blood in the urine affect the pregnancy test? Is it correct anyway?
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Olga Sierpniowska Pharmacist
4 years ago
The pregnancy test should be performed according to the manufacturer's instructions using a body fluid that is intended to be used with a given test - urine or blood. Contamination of the sample may cause the test to fail - but it is difficult for me to answer whether this could have had a real impact on the result of your test. Probably not. However, if you have taken a negative test after 19 days of intercourse and you have experienced withdrawal bleeding, it indicates that you are not pregnant. I enclose additional information: https://www.gdziepolek.pl/artykuly/test-ciazowy-jaki-wybrac-i-kiedy-zrobic