False | 合法醫療器材資訊網

2017年10月25日—Fivereasonsforfalse-positivepregnancytests·1.Evaporationlines.Whentakingahomeurinepregnancytest,itisimportanttofollowthetest's ...

Home pregnancy tests are typically accurate. However, in some instances, a test may produce a false-positive pregnancy result.

Although many home pregnancy tests claim 99% accuracy[1], they may provide false results. A false positive is a test result that indicates the user is pregnant when they are not.

Several factors can lead to a false reading. This article discusses some of the potential causes of a person getting a false-positive pregnancy test reading.

Home urine pregnancy tests work by detecting[2] a hormone called human chorionic gonadotropin (hCG)[3] in the urine. In early pregnancy, cells that will later form part of the placenta produce hCG. This hormone helps the body[4] maintain a pregnancy.

Home pregnancy tests vary depending on the brand, an...

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