The role of sonography in OB

1. 1. To confirm the presence of an intrauterine pregnancy

2. To evaluate a suspected ectopic pregnancy

3. To define the cause of vaginal bleeding

4. To evaluate pelvic pain

5. To estimate gestational (menstrual) age

6. To diagnose or evaluate multiple pregnancy

7. To confirm cardiac activity

8. As an adjunct to chorionic villous sampling, embryo transfer, or

localization and removal of an intrauterine device

9. To assess for certain fetal anomalies, such as anencephaly, in

patients at high risk

10. To evaluate maternal pelvic or adnexal masses or uterine

abnormalities

11. To screen for fetal aneuploidy

12. To evaluate suspected hydatidiform mole

In which trimester would you evaluate for fetal aneuploidy?

• 1st

• 2nd

• 3rd

In which trimester would you evaluate suspected hydatiform mole?

• 1

• 2

• 3

• all

Can scanning in the first trimester be performed transabdominally AND transvaginally?

• Yes

• No

Use of Doppler ultrasound during the first trimester is ___ recommended; it must be used only when there is medical indication and the benefits outweigh the risks

In the first trimester, what is the MOST ACCURATE means for sonographic dating of pregnancy?

• Femur to foot length

• Crown-rump measurement

• BP

• APD

1. Evaluation of gestational age

2. Evaluation of fetal growth

3. Evaluation of vaginal bleeding

4. Evaluation of cervical insufficiency

5. Evaluation of abdominal and pelvic pain

6. Determination of fetal presentation

7. Evaluation of suspected multiple gestation

8. Adjunct to amniocentesis or other procedure

9. Significant discrepancy between uterine size and clinical dates

10. Evaluation of pelvic mass