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Obs and Gynae 22/23 > Antenatal Clinic > Flashcards

Antenatal Clinic Flashcards

1
Q

When is a booking clinic?

A

Before 10 weeks

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2
Q

When is a dating clinic?

A

10-13+6 weeks

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3
Q

When is an anomaly scan?

A

18-20+6 weeks

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4
Q

When do you do an oral glucose tolerance test for gestational diabetes?

A

24-28 weeks

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5
Q

When do you give anti-D in Rhesus negative women?

A

28 and 34 weeks

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6
Q

When do you do an additional scan for placenta praevia?

A

32 weeks

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7
Q

When do you scan for presentation?

A

36+ weeks

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8
Q

When do you give the whooping cough vaccine?

A

16 weeks

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9
Q

What is the combined (trisomy) test composed of?

A

Ultrasound scan for nuchal translucency (1.6-2.4mm)
beta-HCG (high indicates high risk)
Pregnancy associated plasma protein-A (PAPP-A) (low indicates high risk)

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10
Q

Does a high or low b-HCG suggest high risk of trisomy?

A

High

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11
Q

Does a high or low PAPP-A suggest high risk of trisomy?

A

Low

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12
Q

When is the combined (trisomy) test done?

A

11-14 weeks

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13
Q

When is the triple (trisomy) test done?

A

14-20 weeks

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14
Q

What is the triple (trisomy) test comprised of?

A 
b-HCG (high suggests high risk)
Alpha fetoprotein (low suggests high risk)
Serum oestriol (low suggests high risk)
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15
Q

Does a high or low alpha fetoprotein (AFP) suggest high risk of trisomy?

A

Low

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16
Q

Does a high or a low serum oestriol suggest high risk of trisomy?

A

Low

17
Q

When is the quadruple (trisomy) test performed?

A

14-20 weeks

18
Q

What is the quadruple (trisomy) test comprised of?

A 
b-HCG (high suggests high risk)
Alpha fetoprotein (low suggests high risk)
Serum oestriol (low suggests high risk)
Inhibin A (high suggests high risk)
19
Q

What is amniocentesis?

A

An ultrasound-guided needle is used to take a sample of amniotic fluid. This is then tested for chromosomal abnormalities.

20
Q

When can amniocentesis be performed?

A

When a foetus is deemed high risk on a combined/triple/quadruple screening (more than 1/150) and is between 15-20 weeks gestation.

21
Q

What is chorionic villus sampling?

A

An ultrasound-guided biopsy of placental tissue to test for chromosomal abnormalities.

22
Q

When can chorionic villus sampling (CVS) be performed?

A

Under 15 weeks

23
Q

What is non-invasive prenatal testing (NIPT)?

A

A blood test using the mother’s blood. This can be done as the mother’s blood will contain DNA of the placental tissue which is representative of the foetus DNA.

24
Q

What is Edward’s syndrome?

A

Trisomy 18

25
Q

What is Patau’s syndrome?

A

Trisomy 13

26
Q

What is Down’s syndrome?

A

Trisomy 21

27
Q

What dose of folic acid is recommended to all mothers up to 12 weeks?

A

400mcg daily

28
Q

What does unpasteurised dairy and blue cheese carry a risk of in pregnancy?

A

Listeriosis

29
Q

What is the risk of listeriosis in pregnancy?

A

Miscarriage and stillbirth

30
Q

What is the risk of undercooked/raw poultry in pregnancy?

A

Salmonella

31
Q

What is the risk of salmonella in pregnancy?

A

Can potentially be passed to foetus

32
Q

What is the risk of c-section scar rupture if you have SVD after previous CS?

A

1/200

33
Q

What are some risk factors of cervical incompetence?

A

Previous surgery to the cervix (e.g. loop excision)
Cervical trauma (e.g. dilatation and cuterage)
Previous emergency c-section
Connective tissue disorders
Exposure to diethylstilbestrol (DES) medication
Uterine abnormality

34
Q

What is anti-phospholipid syndrome?

A

Disorder of the immune system that increases risk of blood clots inside the vessels. Can lead to miscarriage as clots can block the supply to the placenta.

35
Q

Treatment of antiphospholipid syndrome in pregnancy?

A

Daily aspirin, or heparin, or a combination of both

36
Q

What treatment can be given for cervical incompetence?

A

Cervical cerclage done at 12-14 weeks of pregnancy. Progesterone supplementation can also be given.

Obs and Gynae 22/23 (10 decks)

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