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Human chorionic gonadotropin (hCG) is a hormone for the maternal recognition of pregnancy produced by trophoblast cells that are surrounding a growing embryo (syncytiotrophoblast initially), which eventually forms the placenta after implantation. [1] [2] The presence of hCG is detected in some pregnancy tests (HCG pregnancy strip
The presence of hCG in a woman's body indicates that a fertilized egg has implanted in the uterus and the placenta has started to form. 10 days after fertilization, significant hCG can be detected from woman's blood sample. [6] The levels of hCG in the body increase rapidly in the first few weeks of pregnancy, doubling every 48–72 hours. [7]
A pregnancy test is used to determine whether a female is pregnant or not. The two primary methods are testing for the female pregnancy hormone (human chorionic gonadotropin (hCG)) in blood or urine using a pregnancy test kit, and scanning with ultrasonography. [1] Testing blood for hCG results in the earliest detection of pregnancy. [2]
The hormone human chorionic gonadotropin (hCG) is produced during pregnancy and can be found in a pregnant woman's urine and blood; it indicates the presence of an implanted fertilized egg. An earlier test, known as the AZ test, was developed by Selmar Aschheim and Bernhard Zondek. [2]
Pregnancy is the time during which one or more offspring develops inside a woman's uterus (womb). [4] [13] A multiple pregnancy involves more than one offspring, such as with twins. [14] Pregnancy usually occurs by sexual intercourse, but can also occur through assisted reproductive technology procedures. [6]
When she got her results back, the level of her human chorionic gonadotropin (hCG) — the hormone produced by the placenta during pregnancy — was "off the charts," she was told.
The results were undeniable, with the first signs being high amounts of human chorionic gonadotropin (HCG) in her urine—a hormone produced by pregnant women—all but confirming that she was ...
Normally, the hCG level increases and peaks at the first 14 weeks of pregnancy, and no hCG is detected after the delivery of the baby. [9] The amount of hCG can also reflect the pregnancy. Less hCG is released in a single pregnancy. Similarly, more hCG is released if the mother is carrying triplets, than if she is carrying twins.