- Detect blighted ovum (missed abortion), as evidenced by empty gestational sac
- Detect fetal death, as evidenced by absence of movement and fetal heart tones
- Detect fetal position before birth, such as breech or transverse presentations
- Detect tubal and other forms of ectopic pregnancy
- Determine and confirm pregnancy or multiple gestation by determining the number of gestational sacs in the first trimester
- Determine cause of bleeding, such as placenta previa or abruptio placentae
- Determine fetal effects of Rh incompatibility due to maternal sensitization
- Determine fetal gestational age by uterine size and measurements of crown-rump length, biparietal diameter, fetal extremities, head, and other parts of the anatomy at key phases of fetal development
- Determine fetal heart and body movements and detect high-risk pregnancy by monitoring fetal heart and respiratory movements in combination with Doppler US or real-time grayscale scanning
- Determine fetal structural anomalies, usually at the 20th week of gestation or later
- Determine the placental size, location, and site of implantation
- Differentiate a tumor (hydatidiform mole) from a normal pregnancy
- Guide the needle during amniocentesis and fetal transfusion
- Measure fetal gestational age and evaluate umbilical artery, uterine artery, and fetal aorta by Doppler examination to determine fetal intrauterine growth retardation
- Monitor placental growth and amniotic fluid volume
Ultrasound, Biophysical Profile, Obstetric has been found in Davis's Lab & Diagnostic Tests
If you are a registered user, please login below.
If not, learn more about gaining full access.
- Try and Buy
- Nursing Central puts five fully integrated references at your fingertips on mobile devices and the web. See how Nursing Central works by clicking the sample entries below or purchase a subscription for the web and your mobile device.
View these free topics online now.