Medical Genetics Specific indications include a positive family history and the birth of a previous child affected by a particular genetic disease
Medical Genetics Specific indications include a positive family history and the birth of a previous child affected by a particular genetic disease
Medical Genetics 2. Methods for obtaining fetal tissues for prenatal diagnosis To perform prenatal diagnosis, fetal-derived tissues must first be obtained. All of the commonly used methods that yield fetal tissues are Invasive
Medical Genetics 2. Methods for obtaining fetal tissues for prenatal diagnosis To perform prenatal diagnosis, fetal-derived tissues must first be obtained. All of the commonly used methods that yield fetal tissues are invasive
Medical Genetics A Amniocentesis Amniocentesis is the withdrawal of amniotic fluid from the amniotic sac surrounding the fetus. for over two decades this has been the primary technique utilised for the diagnosis of fetal genetic disorders
Medical Genetics A. Amniocentesis Amniocentesis is the withdrawal of amniotic fluid from the amniotic sac surrounding the fetus. For over two decades this has been the primary technique utilised for the diagnosis of fetal genetic disorders
Medical Genetics Traditionally amniocentesis has been performed around 15 to 16 weeks gestation. At this time the uterus is easily accessible to a transabdominal approach, and a sufficient volume of amniotic fluid (approximately 200 ml) exists to permit 20 to 30 ml to be withdrawn safel
Medical Genetics Traditionally amniocentesis has been performed around 15 to 16 weeks gestation. At this time the uterus is easily accessible to a transabdominal approach, and a sufficient volume of amniotic fluid (approximately 200 ml) exists to permit 20 to 30 ml to be withdrawn safely
Medical Genetics Amniocentesis is normally performed as an outpatient facility An ultrasound examination is normally done immediately before the procedure to evaluate fetal number and viability perform fetal biometric measurements, establish lacental location and estimate amniotic fluid volume
Medical Genetics Amniocentesis is normally performed as an outpatient facility. An ultrasound examination is normally done immediately before the procedure to evaluate fetal number and viability, perform fetal biometric measurements, establish placental location, and estimate amniotic fluid volume