US of Cervix During Pregnancy

Question 1

A short cervix is associated with?

Answer 1

cervical incompetence

Question 2

Cervical incompetence can risk?

Answer 2

pregnancy loss

Question 3

What vessels supply blood to the cervix?

Answer 3

internal iliac artery —> vaginal artery and uterine artery

Question 4

Dilation means the cervix is?

Answer 4

opening

Question 5

Effacement means the cervix is getting?

Answer 5

thinner

Question 6

The cervical length during pregnancy should always be greater than? TAS and TVS

Answer 6

3 cm ; 2.5 cm

Question 7

What is funneling?

Answer 7

A dilation of the internal os

Question 8

True or False: A higher percentage funneling means a higher chance of preterm delivery

Answer 8

True

Question 9

What is the leading cause of 2nd trimester pregnancy loss?

Answer 9

Cervical incompetence

Question 10

What is the course of action for a dilated cervix?

Answer 10

weekly assessment of cervix (18-24 weeks)

Question 11

What is a cerclage?

Answer 11

a stitch or suture done to strengthen cervix in cases of cervical incompetence

Question 12

The purse string cerclage technique is known as?

Answer 12

McDonald cerclage

Question 13

How do sutures appear sonographically?

Answer 13

echogenic

Question 14

A major cause of fetal death is? What causes it?

Answer 14

immature lungs; lack of surfactant

Question 15

A preterm fetus is viable at?

Answer 15

24 weeks

Question 16

What is the most common reason for a cervical pregnancy?

Answer 16

history of previous uterine scar (c-section or D&C)

Question 17

Formula for funneling percentage

Answer 17

funnel length/funnel length +functional length