Test Your Knowledge of Vasa Previa

 

1.  How many types of vasa previa are there?

A. One
B. Two
C. Three
D. Unknown

 

2.  Is velamentous cord insertion dangerous in and of itself?

A. Yes
B. No
C. Maybe

 

3.  True or False: Vasa previa cannot be diagnosed prenatally.

TRUE
FALSE

 

4.  How often does velamentous cord insertion occur?

A. Once in every 300-400 pregnancies
B. Once in every 50,000 pregnancies
C. Once in every 50-100 pregnancies
D. Twice in every 50,000 pregnancies

 

5.   Can velamentous cord insertion occur with a bi-lobed placenta?

A. Yes, it is common for the cord to insert in the   membranes between the lobes
B.  No, the cord always inserts into one of the lobes of a bi-lobed placenta

 

6. What is the infant mortality rate for undiagnosed vasa previa?

A. 5-10%
B. 20-50%
C. 50-95%

 

7.   How common is vasa previa?

A. It occurs once every 2,500 pregnancies
B. It occurs once every 75,000 pregnancies
C. It occurs once in every 10,000 pregnancies

 

8.  Is Cesarean delivery necessary in a case of vasa previa?

A. Always
B. Never
C. Only if a vessel rupture occurs

 

9.  Which condition is a risk factor for vasa previa?

A. Low lying placenta
B. Assisted conception (in-vitro fertilization)
C. Prior history of D&C or uterine surgery
D. All of the above

 

10.  What are the chances of having vasa previa in more than one pregnancy?

A. 100%
B. About the same as having it the first time
C. It is statistically impossible for a woman to have vasa previa more than once

 

11. TRUE or FALSE:   Cord prolapse and vasa previa are related conditions.

TRUE - Any vessels over the cervix are subject to rupture, even when protected by Wharton's jelly as in the case of cord prolapse
FALSE - Vasa previa vessels are not protected by the umbilical cord and instead adhere to the membranes over the cervix, causing them to rupture during cervical dilation or when the membranes break

 

 

12.  When should a woman with vasa previa be delivered?

A. As soon as the woman is diagnosed because there is too much danger to the baby otherwise
B. She should be allowed to rest in the hospital until her due date provided there are no major bleeds
C. At 35 weeks because this allows for minimum risk of fatal rupture while maximizing fetal development

 

13.  Can velamentous cord insertion be detected during routine ultrasound?

A. Yes, and the placental cord connection should always be checked during routine obstetrical ultrasound
B. No, vci can not be seen on ultrasound
C. No, vasa previa is too rare to warrant the additional expense required to check for velamentous cord insertion

 

14. TRUE or FALSE:   Vasa previa babies are far more likely to have birth defects and/or be developmentally delayed.

TRUE - Most vasa previa babies have some sort of developmental disability
FALSE - Vasa previa babies are no more likely to have congenital or post natal difficulties than any other baby

 

 

15.  List the one condition that is not a risk factor for vasa previa.

A. Multiple gestation (twins)
B. Maternal history of D&C
C. Multi-lobed placenta
D. Placenta previa that has corrected itself
E. Preterm labor

 

16.  How is vasa previa diagnosed?

A. By scanning with ultrasound as early as possible
B. By using the latest 3D or 4D ultrasound technology
C. Transvaginal colour Doppler ultrasound
D. It cannot be diagnosed prenatally

 

17. TRUE or FALSE:   Most cases of placenta previa and/or low lying placenta result in vasa previa.

TRUE - At least 75% of the time
FALSE - Many cases of a low lying placenta will resolve themselves allowing a normal vaginal delivery

 

 

18.  Vasa previa is related to which prenatal condition:

A. Placental Abruption
B. Cord Prolapse
C. Low levels of amniotic fluid
D. Any of these, vasa previa always causes other prenatal conditions
E. None of these

 

19. YES or NO:   If I have vasa previa, is it safe to have transvaginal ultrasounds performed?

YES - Transvaginal ultrasounds are very safe
NO - Nothing should ever be placed in the vagina if vasa previa exists because it could cause the vp to rupture

 

 

20. YES or NO:   If I have vasa previa, is it safe for my doctor to manually check the cervix?

YES - Checking the cervix for impending labor is very important and very safe
NO - These types of examinations are not safe if vasa previa exists and could cause the vessels to rupture

 

 


Scoring:
  Anything less than 20 correct potentially costs another child it's life.  This is harsh, but it is a reality the International Vasa Previa Foundation refuses to overlook and exists to change.  Please help us spread awareness of vasa previa!  Contact us at info@vasaprevia.com to volunteer, apply for membership, or request informational brochures and materials.  We believe that infant death due to vasa previa is an avoidable tragedy.  After all, it only takes a moment to diagnose life...