June 17, 2011

First Response Pregnancy Test – Accurately Know Whether You are Pregnant

pregnancy testAny pregnancy test is formulated to diagnose whether a woman is pregnant or not. Most of the pregnancy tests including first response pregnancy test uses beta compartment of Human Chorionic Gonadotropin (hCG) – a hormone specifically increased when a woman is pregnant. hCG is released by placents, after the fertilized ovum is implanted in the uterus. It is a qualitative test, only to measure the presence of the hormone. The concentration where the result will be positive depends upon the brand. Many first response pregnancy test kit can detect as low as 1 mIU/ml of urine, others will be positive with 20 mIU/ml to 100 mIU/ml.

The next question that can come to our mind is that how you can check your pregnancy. Well, as it was said earlier, the first response pregnancy test measures the presence of hCG in urine. All these tests are card based tests and you have to put required amount of urine in the right slot. There is a test area and if you are pregnant, there will be two vertical bands over the test area. If your urine does not contain hCG, there will be only one band. Mid stream urine sample has to be used. To get this, you have to discard the first flow of urine, and then collect the middle part of urine flow in a clean glass pot and let the last part of urine flow again. First morning sample of urine is ideal as the hCG concentration is maximum in this time.

The accuracy of first response pregnancy test depends upon the time when you are performing the test. Most of the test kits available in the market can detect your hCG when you first miss your period. Almost 90% test results are positive at this period. The maximum positivity (almost 97%) can be achieved when you do the test seven days after you miss your period. Some modern kit can detect the hCG even 4 days before you expect your menstruation. If you assume that you can be pregnant, you can do this test.