Antenatal program Flashcards

1
Q

When is the booking visit?

A

8-12 weeks (normally 12 weeks)

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2
Q

When is the growth and anomaly scan?

A

18-20 weeks

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3
Q

When is anti - D given?

A

28 and 34 weeks.

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4
Q

When is the tripe test performed?

A

11-13+6

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5
Q

When can the nuchal thickness be measured, what is it a marker of/

A

Can be measured from 11-13+6 weeks.

A marker in the Downs screening program.

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6
Q

When is an OGTT done/

A

28 weeks.

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7
Q

What is used to estimate gestational age?

A

Crown rump length.

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8
Q

What does the downs triple test incorporate?

A

The nuchal thickness.
Maternal age
Serum levels of PAPPA and HCG

If >1:250, offer confirmatory testing.

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9
Q

Is hcg High or low in downs’

A

HCG is high

Inhibin A is also high

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10
Q

What hormones are low in downs?

A

AFP, PAPPA and estriol.

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11
Q

What would signify twins?

A

high AFP.

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12
Q

Congenital malformations hormone

A

High AFP.

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13
Q

Amniocentesis > 15 weeks.

1% miscarriage risk

A

CVS 12 weeks

2% miscarriage risk.

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14
Q

What genetic test is targeted?

A

FISH

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15
Q

What genetic tests lets you look at the whole genome?

A

Array CGH (comparative genomic hybridisation)

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16
Q

Asymmetrical growth restriction suggests what?

A

Suggests that the deficiency occurs later in pregnancy due to placental insufficiency.

Normal head with smaller body.

17
Q

Normal volume of amniotic fluid?

A

500-1500mls

18
Q

Some causes of polyhydramnios?

A

Twins, diabetes, hydrous fetal is, fetal anomaly.

19
Q

What are a few causes of oligohydraminios?

A

Amniotic fluid < 2cm.

Causes by IUGR, renal agensis, pulmonary hypoplasia.

20
Q

It is the 14th week of a pregnancy, the triple test is no longer appropriate, what test do you do?

A

The quadruple test.

HCG, PAPPA< AFP< Unconjygated estriol

21
Q

What test is helpful for rhesis disease?

A

Kleihauer test.

22
Q

What is the ductus venous?

A

A shunt for blood from left umbilical vein into vena cava.

23
Q

What is the ductus arteriorus?

A

Connects pulmonary artery to descending aorta.