False Positive Pregnancy Blood Test Results

If there s a false positive test result the test indicates that a woman is pregnant when in fact she isn t.

False positive pregnancy blood test results.

It s also possible to get a false positive result if your body produces certain types. It takes at least seven days after fertilization for the test to become positive. Wrong results with blood pregnancy tests a blood test might not detect human chorionic gonadotropin hcg even when a woman is pregnant if the test is done too early. Most over the counter pregnancy tests measure the levels of hcg in a woman s urine.

Other medications can also cause false positive pregnancy tests. After an abortion or miscarriage a home pregnancy test may produce a false positive result since the levels of hcg in the body may still be relatively high. It may cause a false positive reading on an at home pregnancy test particularly if the test is taken too early. But they can cause the body to start producing hcg which could get picked up on a pregnancy test and cause a false positive reading.

Taking a home urine pregnancy test. Molecules made by our immune system that identify and neutralize invaders such as bacteria and viruses. There is another cause of false positive hcg test results that is unique to blood samples. First a quick summary.

Human blood normally contains many different types of antibodies. A phantom hcg causes a positive blood pregnancy test without being pregnant. As with urine home pregnancy tests it is possible to end up with false results both negative and positive from a blood pregnancy test. A false positive test result a positive human chorionic gonadotropin hcg test result when you are not pregnant can occur for a variety of reasons.

Though very rare a false positive blood test happens with a low positive blood pregnancy test the urine test is negative and there is no pregnancy.