The antibody will only bind to hcg. Very few things can interfere with a pregnancy test typically.
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How do pregnancy kit works. It first enters your bloodstream when the fertilized egg starts to implant in the lining. The tests work by binding the hcg hormone from either blood or urine to an antibody and an indicator. The pregnancy test kit detects the presence of hcg in your urine.
You need to wait for colour change as it may have affected by concentration of hcg in the urine specimen. Some pregnancy test kits are more sensitive than others but most will be able to detect hcg between the fourth to fifth week of your pregnancy. Photo courtesy anita pattersonmorguefile.
The pregnancy hormone coming from placenta starts coming along your pee. Home pregnancy tests can tell you if youre pregnant by detecting the presence of a hormone called human chorionic gonadotropin hcg in your urine. After roughly 40 weeks a tiny mass of cells transforms into a newborn.
Average reaction time will be mentioned on in kit cover by the manufacturer. A pregnancy test has special chemicals that are able to detect hcg in your urine. See more pregnancy pictures.
Other hormones will not give a positive test result. When purchasing a pregnancy test check the expiration date on the box and ensure the box is fully intact with no wear and tear as this could affect your result. This hormone is made right after a fertilized egg attaches to the wall of a womans uterus.
The usual indicator is a pigment molecule present in a line across a home pregnancy urine test. When you dip the test or pee on the stick the detector chemical on the kit attaches to hcg. During fertilization the sperm undertake a long and perilous journey into the womans body.
Result is usually reflected in 40 seconds but it is advised to wait for at least 5 minutes for confirmation of negative test. Together hcg and detector chemicals make a color that you see as a line. This hormone is produced by cells that will develop into the placenta.
Their quest is to cross the cervix before they die. Using a pregnancy test kit. When a womans urine comes in contact with the specially treated strip on a pregnancy test stick results appear within minutes indicating whether or not hcg the pregnancy hormone has been detected.
It is a qualitative test. As urine and testing dye move across a pregnancy test reagent field hcg is captured along with the dye to produce a test sign or positive test line. All home pregnancy tests work the same way by detecting levels of the hormone hcg in your urine.
A pregnancy test functions because of a special reagent that reacts and binds to hcg. Pregnancy test false positives and negatives. Pregnancy tests are designed to tell if your urine or blood contains a hormone called human chorionic gonadotropin hcg.
This usually happens but not always about 6 days after fertilization. Pregnancy tests work by detecting hcg levels in your urine. How does a pregnancy test work.
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