Radiology

Question 1

What are the clinical situations where X-rays are of value?

Answer 1

1. Multiple pregnancy
2. Estimation of fetal age
3. Pelvimetry
4. Abnormal lie
5. Abnormal fetus
6. Fetal death
7. Extra uterine pregnancy

Question 2

How are X-rays used to calculate the gestational age?

Answer 2

• fetal fat line- 32 weeks
• lower femoral epiphyses - 36 weeks
• upper femoral epiphyses - 38 weeks

Question 3

What types of presentation can X-ray detect

Answer 3

Face and brow

Question 4

What are the signs of fetal death

Answer 4

Spalding’s sign (overlapping skull bones)
Air in aorta and heart
Curled up position of fetus
Fetal abnormality causing IUD

Question 5

What are some of there signs of extra uterine pregnancy?

Answer 5

• in the lateral view
• fetal parts cross the maternal spine
• abnormal lie of fetus

Question 6

Are X-rays teratogenic

Answer 6

The risk of radiation to the fetus is extremely low and in early pregnancy has an all or nothing effect.
Causes fetal death or no abnormality