research any test before deciding whether to use it or not. For more information on prenatal testing, see the FAQs available from info on the Internet. Testing decisions vary greatly depending on family history, medical condition, parental beliefs, etc.
With transvaginal ultrasound, checking for embryonic development known to occur within a certain time frame more accurately dates a pregnancy.
A registered nurse with more than 25 years of experience in oncology, labor/delivery, neonatal intensive care, infertility and ophthalmology, Sharon Perkins has also coauthored and edited numerous health books for the Wiley "Dummies" series.
Perkins also has extensive experience working in home health with medically fragile pediatric patients.
Transvaginal ultrasound can see embryonic development about a week before transabdominal ultrasound, the American Pregnancy Association (APA) states.
A transducer, a wand-shaped probe, is inserted into the vagina and pressed against the vaginal walls directly next to the uterus.
There are basically seven different ultrasound exams, but the principle process is the same.