The first step in the process is the ovarian stimulation. This step involves drugs. The hormone that’s taken over 8-14 days, fuels and stimulates the ovaries to produce more than one egg each cycle (The In Vitro Process). IVF requires several eggs because there is a chance that some eggs might not develop fine after fertilization. After that, the doctor will use ultrasound or he will test the blood in order to decide when it is necessary for him to take out the eggs.
- Medical history, physical examination and other related tests are taken to determine candidacy. - The woman receives hormone injections (Human Menopausal Gonadotropin and recombinant Follicle-Stimulating Hormone) to stimulate development of the ovarian follicles which contain eggs. Frequent blood tests are taken to monitor hormone secretion from the ovary and pituitary gland. - When eggs are ripe, they are retrieved by transvaginal needle aspiration, guided by ultrasound. At the same time, semen samples from the husband (or donor) are obtained.
These sperm are determined by washing and spinning the sperm at high speeds. After two hours after the eggs are collected the sperm and eggs are mixed in the hope of fertilization and an embryo to be formed. If the ICSI opinion is being used, a single sperm is injected into each of the eggs at this stage. Embryo transfer: when the embryo has divided into about eight cells, after about two-six days, one or two of the successful embryo will be placed back into the uterus. If more than one is transferred by it could lead to multiply pregnancies, which are more common amongst IVF procedures.
In preparation for AI, a shot of FSH (Follicle Stimulating Hormone) should be given to the cow to super-ovulate her. This causes more eggs to drop from the ovaries, allowing more embryos. Seven days after the cow is inseminated the third time, her uterus should be flushed. Before flushing the cow, her posterior should be cleaned up as much as possible. After this is complete, an instrument known as the “introducer” is inserted into the vagina.
The process for in vitro fertilization involves stimulating multiple follicles and eggs to develop over time. There are 5 steps in this process stimulation, egg retrieval, fertilizing the eggs in the laboratory, culturing the embryo, and embryo transfer to the uterus (A.D.A.M Board, 2012). In the stimulation process both partners perform screening test. Before injection, the female should have a testing of “ovarian reserve”. The medication is given to help ripen the eggs to start a process called ovulation.
In vitro fertilization or fertilisation is a process by which an egg is fertilised by sperm outside the body: in vitro . The process involves monitoring and stimulating a woman 's ovulatory process, removing an ovum or ova from the woman 's ovaries and letting sperm fertilise them in a liquid in a laboratory. The fertilised egg is cultured for 2–6 days in a growth medium and is then implanted in the same or another woman 's uterus, with the intention of establishing a successful pregnancy. IVF techniques can be used in different types of situations. It is a technique of assisted reproductive technology for treatment of infertility.
The chemistry of pregnancy and progesterone Pregnancy is the development and fertilization of offspring. The name of the offspring that is growing in a women’s uterus is known as an embryo or fetus. Delivery of child usually happens, about 38 weeks after conception. This is roughly 40 weeks from the start of the last normal menstrual period. Conception can be attained by sexual intercourse or with a form of assisted reproductive technology.
The first step in IVF is stimulating the ovaries. This is done by injecting a Follicle Stimulating Hormone (FSH) to increase the number of eggs the woman produces. Once the eggs have matured, they are removed from the ovaries by putting a needle into the fluid filled sacs, which hold the eggs, and aspirating them out. Figure 1 – Egg removal The semen is then collected and put into a test tube, with the sperm that have poor motility being filtered out. The eggs are then inseminated with the sperm and cultured in a laboratory for 16-20 hours.
The technique of in vitro fertilization or IVF removes several eggs from the ovaries for fertilization in the laboratory. After a few days, one or two of these fertilized eggs which are now known as embryos are returned to the uterus in the hope that they implant and become a pregnancy. Women undergoing IVF are given special reproductive hormones to encourage several eggs to develop in the ovaries. Final maturation of the egg itself is induced by the administration of a further hormone. Thirty-six hours later, the fluid containing the eggs are drawn from the ovary with a needle; this is usually performed under light sedation in a short, outpatient procedure with the doctor using ultra-sound to check proceedings.
When two follicles more than 1.5cm in diameter are found through ultrasound, an injection of hCG (Human Chorionic Gonadotropin) is administered to stimulate maturation of follicles. The eggs are then collected approximately 36 hours after the hCG injection. The next step technically is the removal of ovum as mentioned by DeCherney (1986). The surgeon inserts a sterile need... ... middle of paper ... ...murder. Goldworth (1999) asserts that science supports the perception that life begins at conception as the embryo differs from other cells in a woman and can be identified as human by its DNA.