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OB-Gyn > Numbers To Remeber > Flashcards

Numbers To Remeber Flashcards

1
Q

Uterus & tube arise from Müllerian duct

A

5th week

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2
Q

Wt of Non parous & parous uterus

A

Non: 50-70g
P: 80+g (1100 @ term)

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3
Q

Length of oviduct

A

8-14cm

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4
Q

Ovulation occurs…

A

24 hours after estradiol peak

34-36 hours after initial rise in LH

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5
Q

LH peak

A

10-12 hrs before ovulation

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6
Q

Ovarian progesterone production peaks at … during midluteal phase

A

25-50mg/day

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7
Q

Secondary rise that reaches a peak production of estrogen … @ midluteal phase

A

0.25mg/day of 17-estradiol

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8
Q

When will CL regress in the absence of pregnancy

A

9-11 days after ovulation

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9
Q

Follicular phase

A

5-7 days or 2-30 days

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10
Q

Luteal or secretory phase

A

12-14 days

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11
Q

Epithelial surface of endometrium has been restored and revascularized by what day

A

5th day of endometrial cycle

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12
Q

Glycogen accumulates in basal portion of glandular epithelium creating subnuclear vacuoles & pseudostratification

A

Day 17 (1st sign of ovulation)

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13
Q

Stromal edema

A

Day 21-24

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14
Q

Apparent stromal mitosis

A

Day 22-25

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15
Q

Predecidual cells surround spiral arteriole

A

Day 23-28

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16
Q

Window of implantation

A

Day 20-24

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17
Q

Completely enlarged decidua

A

14-16 weeks

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18
Q

Implantation of blastocyst

A

6-7 days after fertilization

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19
Q

Uterine receptivity

A

Day 20-24

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20
Q

Trophoblasts differentiation

A

8th day post fertilization

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21
Q

Blastocyst totally encased in the endometrium

A

Day 10

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22
Q

Lacunae formation within the syncyctiotrophoblast

A

12 days after conception

23
Q

Chorionic villi can first be distinguished

A

12th day of fertilization

24
Q

Maternal blood enters the intervillous space

A

14-15 days after fertilization

25
Q

Placental circulation is established

A

17th day

26
Q

Definitive chorionic plate formed

A

8-10 weeks

27
Q

Chorion leave & amnion separated by exocoelomic cavity

A

Until 3rd month

28
Q

Placenta = fetal weight

A

17th week

29
Q

Placental wt

A

508g

30
Q

Prominent venous plexus separates the decidua basalis from the myometrium, thus provides a plane cleavage for placental separation

A

After 30th week

31
Q

Maximal secretion of hCG

A

8-10 weeks

32
Q

hCG detectable in plasma of pregnant woman

A

7-9 days after mid cycle surge of LH

33
Q

hCG begin to decline

A

10-12 weeks

34
Q

hCG takes over CL

A

8 days after ovulation or 1 day after implantation

35
Q

hPL detected in trophoblast

A

2nd-3rd week after fertilization

36
Q

hPL identified in cytotrophoblast

A

Before 6 weeks

37
Q

hPL demonstrable in placenta

A

5-10 days after conception

38
Q

Detected in maternal serum

A

3 weeks post fertilization

39
Q

hPL rises

A

Until about 34-36 weeks

40
Q

Placental hGH-V

A

21-26 weeks

41
Q

Inc in concentration

A

36 weeks

42
Q

Increase in utero placental blood flow near term

A

450-650ml/min

43
Q

CL functions maximally

A

1st 6-7th week of pregnancy –4-5 weeks post ovulation

44
Q

FSH don’t reach perimenopausal level until

A

5 wks postpartum

45
Q

Metabolic rate by 3rd trimester

A

Increased by 10-20%

46
Q

Approx wt gain

A

12.5 kg or 27.5 lbs

47
Q

Min amt of extra water that average woman accrues

A

6.5L

48
Q

Average increase in erythrocyte volume

A

450ml

49
Q

Most important change in cardiac function

A

First 8 weeks of pregnancy

50
Q

Increase in CO

A

5th week

51
Q

Increase in plasma volume

A

Weeks 10-20

52
Q

Increase in resting pulse rate

A

10beats/min

53
Q

Patent vagina

A

6th month of life

OB-Gyn (12 decks)

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