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A home pregnancy test is a self-diagnostic tool that allows women to quickly and easily determine if they are pregnant. These tests measure Human Chorionic Ganadotrophin (hCG), a hormone that is secreted in urine during pregnancy. A technique, known as an immunoassay which involves a complex reaction between the hormone and various protein antibodies, is used to measure hCG. When urine containing hCG is applied to the test strip a reaction occurs which causes a portion of the stick to change colour thus signalling the hormone is present and that the woman is pregnant.
How accurate are Home Pregnancy Tests?
How accurate a home pregnancy test is depends upon:
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