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Obstetrics > Physiology changes in pregnancy II > Flashcards

Physiology changes in pregnancy II Flashcards

1
Q

Increase or decrease / procoagulant or anticoagulant - Fibrinogen

A

Fibrinogen is a procoagulant that increases

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2
Q

Increase or decrease / procoagulant or anticoagulant - Factor VII

A

Factor VII is a procoagulant that increases

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3
Q

Increase or decrease / procoagulant or anticoagulant - Factor VIII

A

Factor VIII is a procoagulant that increases

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4
Q

Increase or decrease / procoagulant or anticoagulant - Factor X

A

Factor X is a procoagulant that increases

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5
Q

Increase or decrease / procoagulant or anticoagulant - von Willebrand

A

von Willebrand is a procoagulant that increases

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6
Q

Increase or decrease / procoagulant or anticoagulant - PA-1

A

PA-1 is a procoagulant that increases

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7
Q

Increase or decrease / procoagulant or anticoagulant - PA-2

A

PA-2 is a procoagulant that increases

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8
Q

Increase or decrease / procoagulant or anticoagulant - Factor XI

A

Factor XI is a procoagulant that decreases

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9
Q

Increase or decrease / procoagulant or anticoagulant - Factor XIII

A

Factor XIII is a procoagulant that decreases

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10
Q

Increase or decrease / procoagulant or anticoagulant - Protein S

A

Protein S is an anticoagulant that decreases (the actual numerical value increases by trimester, but the overall value is still decreased)

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11
Q

Increase or decrease / procoagulant or anticoagulant - Factor II

A

Factor II is a procoagulant that stays the same

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12
Q

Increase or decrease / procoagulant or anticoagulant - Factor V

A

Factor V is a procoagulant that stays the same

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13
Q

Increase or decrease / procoagulant or anticoagulant - Factor IX

A

Factor IX is a procoagulant that stays the same

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14
Q

Increase or decrease / procoagulant or anticoagulant - Protein C

A

Protein C is an anticoagulant that stays the same

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15
Q

Increase or decrease / procoagulant or anticoagulant - Antithrombin 3

A

Antithrombin 3 is an anticoagulant that stays the same

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16
Q

True or false - thyroid changes that occur during pregnancy are the same as with OCPs

A

True

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17
Q

Increase or decrease - T4

A

Increase

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18
Q

Increase or decrease - Iodide

A

Decrease

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19
Q

Increase or decrease - Free T4

A

Stays the same

20
Q

Increase or decrease - TSH

A

Stays the same (initially decreases then increases)

21
Q

Increase or decrease - FTI (free T4 index)

A

Stays the same

22
Q

What drug to use for hyperthyroidism in the 1st trimester

A

PTU

23
Q

Adverse effect of PTU

A

Liver toxicity/agranulocytosis (maternal)

24
Q

What drug to use for hyperthyroidism in the 2nd trimester?

A

Methimazole

25
Q

Adverse effect of methimazole if used before the 2nd trimester

A

Aplasia cutis

26
Q

What drug to use for hyperthyroidism in the third trimester?

A

Methimazole

27
Q

What is the limiting dimension for delivery?

A

Ischial spines

28
Q

What is the average bispinous diameter (ischial spines)?

A

10.5cm

29
Q

What is the diagonal conjugate?

A

Distance from the sacral promontory to the symphysis pubis

30
Q

Why do we measure the diagonal conjugate instead of the true/obstetric conjugate?

A

The true/obstetric conjugate cannot be reached

While the diagonal can be clinically assessed

31
Q

Calculation for the obstetric conjugate

A

Diagonal conjugate - 1.5

32
Q

A contracted obstetric conjugate =

A

<10.5cm

33
Q

What is the measurement of the biparietal diameter at term?

A

9.3cm

34
Q

What is the measurement of the femur length at term?

A

7.4cm

35
Q

How can you use CRL to estimate weeks of gestation?

A

CRL (cm) + 6.5cm [ex 3.5cm + 6.5cm = 10 weeks]

36
Q

Definition of Engagement

A

BPD passed the plane of the inlet, presenting part at ischial spines

37
Q

Pelvic class that is round

A

Gynecoid

38
Q

Pelvic class that is considered a “good delivery shape” and prognostically good

A

Gynecoid

39
Q

Pelvic class that is an anterior-posterior egg shape

A

Anthropoid

40
Q

Pelvic class that is associated with an increased OP delivery

A

Anthropoid (it is the only one w OP in the name and increased OP deliveries)

41
Q

What population has increased anthropoid pelvises (OP deliveries) ?

A

African American (common blunted ischial spines and medium pubic arch)

42
Q

Pelvic class that has an anterior-posterior diamond shape

A

Android

43
Q

Pelvis shape that is the most limited in the transverse plane for flexed fetal head

A

Android

44
Q

Pelvic class that is considered a “bad delivery shape”

A

Android; it has the least transverse diameter of outlet, also only prominent ischial spines and only narrow suprapubic arch

45
Q

Pelvic class that has the shape of a flat oval

A

Platypelloid

46
Q

Pelvic class that is persistent transverse (very wide)

A

Platypelloid

47
Q

What population is a platypelloid pelvic increased in?

A

Korean women

Obstetrics (13 decks)

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