chorionic villus sampling

Chorionic villus sampling uses a very thin needle to puncture the placental tissue and remove the appropriate amount of villus tissue for cellular or genetic examination. The subject was supine, knee flexed, supported by ankle or knee; the doctor under the guidance of ultrasound scanning, the catheter was delivered to the placental villus via the vagina and cervix, and a small amount of fluff was taken with an empty needle for examination. Fetal abnormalities caused by chromosomal abnormalities, genetic abnormalities, structural abnormalities, and other external factors. Basic Information Specialist classification: maternity inspection inspection classification: other inspection Applicable gender: whether women are fasting: not fasting Tips: When checking: Relax your body and actively cooperate with your doctor. Normal value The fetus grows normally. Clinical significance Abnormal results: Fetal abnormalities caused by chromosomal abnormalities, genetic abnormalities, structural abnormalities, and other external factors. People who need to check: After screening in the first trimester, the high-risk group, the older women are worried that the fetus may be abnormal, the previous pregnancy has had a chromosomal abnormality, or one of the husband and wife has a chromosomal abnormality. Precautions Before the inspection: pay attention to rest. When checking: Relax your body and actively cooperate with your doctor. Inspection process The subject was supine, knee flexed, supported by ankle or knee; the doctor under the guidance of ultrasound scanning, the catheter was delivered to the placental villus via the vagina and cervix, and a small amount of fluff was taken with an empty needle for examination. Not suitable for the crowd Inappropriate crowd: Any maternal from the last menstrual period, more than 12 weeks of gestational weeks; maternal vaginal infection; uterine shape of the same maternal, such as uterine fibroids or double-horned uterus; severe vaginal bleeding.