Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Reproduction > Twin Pregnancies > Flashcards

Twin Pregnancies Flashcards

1
Q

What are the 2 natural causes of twin pregnancies?

A

More than 1 egg released during 1 menstrual cycle

The zygote divides after fertilisation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is an artificial reason for twin pregnancies?

A

More than 1 embryo transferred into the uterus in IVF treatment

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are the 2 main types of twins?

A

Monozygotic twins

Dizygotic twins

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

How are monozygotic twins formed?

A

One egg

One sperm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

How are dizygotic twins formed?

A

Fertilisation of 2 different eggs and 2 different sperm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Are monozygotic identical or non-identical?

A

Identical

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Are dizygotic twins identical or non-identical?

A

Non-identical

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What does monochorionic mean?

A

Only one outer membrane surrounds the babies

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What does dichorionic mean

A

Two separate outer membranes surround the babies

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is monoamniotic?

A

Only one amniotic sac, so babies share the amniotic sac

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is monoamniotic?

A

Only one amniotic sac, so babies share the amniotic sac

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is diamniotic?

A

Two amniotic sacs, babies have separate amniotic sacs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What does dichorionic diamniotic mean?

A

Two different sacs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is monochorionic diamniotic?

A

Same outer sac, 2 inner sacs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is monochorionic monoamniotic?

A

They share the same sacs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What form of imaging is used to determine different types of twins?

A

Ultrasound scan

16
Q

What are the 2 signs used to determine the different types of twins?

A

Lambda sign

T sign

17
Q

What type of twins does the lambda sign indicate?

A

Dichorionic diamniotic twins

18
Q

What type of twins does the T sign indicate?

A

Monochorionic diamniotic twins

19
Q

What are antenatal complications of twin pregnancies?

A

Polyhydramnios
Pregnancy induced hypertension
Anaemia
Antepartum haemorrhage

20
Q

What are fetal complications of twin pregnancies?

A

IUGR
Prematurity
Light-for date babies
Malformation

21
Q

What are the main problems with monochorionic twins?

A

Twin to twin transfusion syndrome
Twin anaemia polycythaemia sequence
Twin reversed arterial perfusion (TRAP)

22
Q

What are possible labour complications of twin pregnancies?

A

Postpartum haemorrhage
Malpresentation
Cord prolapse, Entanglement

23
Q

What are predisposing factors for twin pregnancies?

A

Previous twins
Family history
Increasing maternal age
Race: Afro-Carribean

24
Q

What is the main aim of delivery for DCDA?

A

37 weeks

Vaginal delivery

25
Q

What is the aim of delivery for MCDA

A

36 weeks

Vaginal delivery

26
Q

When would you offer a caesarean section to someone with twins?

A

If the babies wasn’t in the cephalic position

27
Q

What is the aim of delivery for triplets?

A

35 weeks

caesarean section

Reproduction (88 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions