Podcast
Questions and Answers
Splitting of a single fertilized ovum between 8 to 12 days typically results in which type of twin pregnancy?
Splitting of a single fertilized ovum between 8 to 12 days typically results in which type of twin pregnancy?
- Dichorionic diamniotic twins
- Monochorionic diamniotic twins (correct)
- Monochorionic monoamniotic twins
- Conjoined twins
Which type of twin pregnancy is characterized by the 'twin peak sign' on ultrasound?
Which type of twin pregnancy is characterized by the 'twin peak sign' on ultrasound?
- Monochorionic monoamniotic twins
- Monochorionic diamniotic twins
- Conjoined twins
- Dichorionic diamniotic twins (correct)
What is the recommended additional daily caloric intake for a mother carrying twins?
What is the recommended additional daily caloric intake for a mother carrying twins?
- 300 kcal
- 800 kcal
- 500 kcal
- 1000 kcal (correct)
A 32-year-old woman, G2P1 at 20 weeks gestation, presents with ultrasound findings revealing a twin pregnancy, a single placental mass, and a dividing membrane displaying an inverted lambda sign. Which type of twinning is most likely?
A 32-year-old woman, G2P1 at 20 weeks gestation, presents with ultrasound findings revealing a twin pregnancy, a single placental mass, and a dividing membrane displaying an inverted lambda sign. Which type of twinning is most likely?
Twin pregnancies are commonly associated with several complications. Which of the following is LEAST likely to be a complication of a twin pregnancy?
Twin pregnancies are commonly associated with several complications. Which of the following is LEAST likely to be a complication of a twin pregnancy?
In a monochorionic twin placenta with deep unidirectional arteriovenous communication and absent superficial vascular anastomoses, which complication is most likely?
In a monochorionic twin placenta with deep unidirectional arteriovenous communication and absent superficial vascular anastomoses, which complication is most likely?
In which of the following twin pregnancies is a Cesarean section generally indicated?
In which of the following twin pregnancies is a Cesarean section generally indicated?
Which of the following is the most common type of conjoined twins?
Which of the following is the most common type of conjoined twins?
What is superfecundation?
What is superfecundation?
Which of the following ultrasound findings would NOT typically be present in a dizygotic twin pregnancy?
Which of the following ultrasound findings would NOT typically be present in a dizygotic twin pregnancy?
In the context of twin pregnancies, what is the significance of the Quintero staging system?
In the context of twin pregnancies, what is the significance of the Quintero staging system?
Which of the following biochemical markers is LEAST helpful in determining zygosity in twin pregnancies?
Which of the following biochemical markers is LEAST helpful in determining zygosity in twin pregnancies?
What is the primary goal of selective fetal reduction in a multiple gestation pregnancy?
What is the primary goal of selective fetal reduction in a multiple gestation pregnancy?
Which of the following is the MOST significant risk associated with late-late twin-twin transfusion syndrome (TTTS)?
Which of the following is the MOST significant risk associated with late-late twin-twin transfusion syndrome (TTTS)?
What is the underlying mechanism behind Twin Reversed Arterial Perfusion (TRAP) sequence?
What is the underlying mechanism behind Twin Reversed Arterial Perfusion (TRAP) sequence?
What is the Kleihauer-Betke test used for in the context of twin pregnancies?
What is the Kleihauer-Betke test used for in the context of twin pregnancies?
Which of the following is the MOST accurate method for determining zygosity in twins postnatally when placental examination is inconclusive?
Which of the following is the MOST accurate method for determining zygosity in twins postnatally when placental examination is inconclusive?
What is the primary benefit of performing laser ablation of communicating vessels in TTTS?
What is the primary benefit of performing laser ablation of communicating vessels in TTTS?
Which of the following strategies is LEAST likely to be effective in managing growth discordance in dichorionic diamniotic twins?
Which of the following strategies is LEAST likely to be effective in managing growth discordance in dichorionic diamniotic twins?
In the management of twin pregnancies, when is cerclage placement considered?
In the management of twin pregnancies, when is cerclage placement considered?
Flashcards
Timing of Conjoined Twins
Timing of Conjoined Twins
Conjoined twins result from the splitting of a single fertilized ovum between 8 to 12 days.
Twin Peak Sign
Twin Peak Sign
Twin peak sign is a feature of dichorionic diamniotic twins.
Twin Pregnancy Caloric Needs
Twin Pregnancy Caloric Needs
In a twin pregnancy, a mother requires an additional 300 Kcal per day.
Inverted Lambda Sign
Inverted Lambda Sign
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Twin Pregnancy Complications
Twin Pregnancy Complications
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Twin to Twin Transfusion Syndrome
Twin to Twin Transfusion Syndrome
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Monoamniotic Twins Delivery
Monoamniotic Twins Delivery
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Most Common Conjoined Twins
Most Common Conjoined Twins
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What is superfecundation?
What is superfecundation?
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Dizygotic Twin Pregnancy
Dizygotic Twin Pregnancy
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Study Notes
- Splitting of a single fertilized ovum between 8 to 12 days results in monochorionic monoamniotic twins.
- Twin peak sign is a feature of dichorionic diamniotic twins.
- The additional caloric requirement for a mother in a twin pregnancy is 300 Kcal per day.
- In a twin pregnancy at 20 weeks, a single placental mass with a dividing membrane having an inverted lambda sign indicates monochorionic diamniotic twins.
- Twin pregnancy is complicated by placenta previa, malpresentation, and hydramnios. Post term labor is not a typical complication.
- Monochorionic twin placenta with unidirectional deep arteriovenous communication and lack of superficial vascular anastomoses suggests twin-to-twin transfusion syndrome.
- Caesarean section is indicated in monoamniotic twin pregnancies.
- The most common variety of conjoined twins is thoracopagus.
- Superfecundation is when twin fetuses result from the fertilization of two ova within the same menstrual cycle but not at the same coitus.
- The ultrasound finding that cannot be present in dizygotic twin pregnancy is T-sign.
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