chorionic villus sampling…

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what the risks are chorionic villus sampling, chorionic villus sampling, cvs, taking a small piece of placental tissue, chorionic villi, uterus, in the early stages of pregnancy to check, genetic defects, in the fetus, depending on, placenta is located, cvs, the cervix, transcervical, the abdomen, transabdominal, techniques, thought to be equally safe, obtaining samples, the transcervical, transabdominal cvs, ultrasound guidance, an abdominal ultrasound is performed, the position, the uterus, the gestational sac, position, the placenta, the uterus, vulva, vagina, cervix, cleansed, an antiseptic betadine, the transabdominal procedure, abdomen is also cleansed, transcervical procedure is performed by inserting a thin plastic tube, the vagina, cervix to reach the placenta, ultrasound, help guide the tube, appropriate area, a small sample of chorionic villus tissue is withdrawn, transabdominal procedure is performed by inserting a needle, the abdomen, uterus, placenta, ultrasound, help guide the needle, a small amount, tissue is drawn, syringe, sample, dish, evaluated, health care provider, explain the procedure, its risks, alternative procedures amniocentesis, genetic counseling, allow to make an unhurried, informed decision regarding options, prenatal diagnosis, sign a consent form, this procedure, wear a hospital gown, morning, the procedure asked, drink fluids, refrain from urinating to fill bladder, allows adequate visualization, sample taken, ultrasound is not uncomfortable, a clear, water-based conducting gel is applied, skin to help, the transmission, the sound waves, a handheld probe, a transducer is then moved over the area, apply pressure on abdomen in an attempt to manually locate the position of uterus, antiseptic cleansing solution, feel cold initially, irritate skin, not removed, allergic to betadine, allergic to betadine, have any other allergies, patients report that the actual sampling feels similar to a pap smear, where there is some discomfort, a feeling of pressure, a small amount, bleeding following the procedure, an obstetrician, perform this procedure in, 5 minutes, preparation, this test, way of detecting congenital, birth, defects, sample, study the dna, chromosomes, enzymes, the fetus, done earlier than amniocentesis, 10 to 12 weeks after last menstrual period, test results, a cvs, 1 to 2 weeks, whereas amniocentesis results, take, a month, earlier diagnosis of congenital defects, relieve some, the concerns of family, a therapeutic abortion is under consideration, chorionic villus sampling, does not detect neural tube defects, neural tube defects, rh incompatibility, a concern, an amniocentesis, normal values would indicate an absence of congenital defects, analysis, the biopsy, indicate any of more than 200 disorders, the following, down syndrome, hemoglobinopathies, tay-sachs disease risks of cvs, slightly higher than those of an amniocentesis, fetal loss occurs, 2%, the time, complications, rupture of membranes, rupture, the amniotic membrane, spontaneous abortion, miscarriage, infection, bleeding, rh incompatibility, in the mother, contamination, the sample, maternal cells, cvs associated, an increased risk, limb anomalies, in the fetus, risk appears to be very low, 1 in 3,000, cvs is performed after 10 weeks gestational age, after this test, blood is rh negative, receive rhogam to avoid rh incompatibility, two to 4 days, cvs, scheduled, follow-up ultrasound, to ensure that the fetus survived the procedure, report any signs that there complications, the procedure to health care provider, excessive bleeding, excessive vaginal discharge, fever, miscarriage.