Module 6- 1st Trimester Abnormal

Question 1

How is MSD calculated?

Answer 1

L + W + H / 3

Question 2

What are the sizes the MSD has to be to see the yolk sac and embryo on EV/TA?

Answer 2

EV: MSD 8mm- yolk sac seen
MSD 16mm- Embryo seen
TA: MSD 20mm- Yolk sac seen
MSD 25mm- embryo seen

Question 3

What is the classical clinical triad of an ectopic?

Answer 3

1. Pain
2. Bleeding
3. Adnexal mass

Question 4

What is the most common ectopic site?

Answer 4

95% occur in the ampulla

Question 5

What is a heterotopic pregnancy?

Answer 5

An intrauterine pregnancy with a twin ectopic

Question 6

What is physiological herniation?

Answer 6

When the fetal gut herniates into the base of the umbilical cord at 8 weeks. Goes back in around 12 weeks.

Question 7

What are the classifications of abortions?

Answer 7

1. Threatened abortion- vaginal bleeding but normal pregnancy
2. Anembryonic- AKA blighted ovum, no embryo
3. Embryonic demise- AKA missed abortion, dead fetus
4. Inevitable abortion- in progress
5. Incomplete abortion- some products of conception have passed but some remain
6. Complete abortion- all products have passed
7. Habitual abortions- 3 or more consecutive abortions
8. Septic abortion- infected products of conception