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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
Placental circulation is established
17th day
26
Definitive chorionic plate formed
8-10 weeks
27
Chorion leave & amnion separated by exocoelomic cavity
Until 3rd month
28
Placenta = fetal weight
17th week
29
Placental wt
508g
30
Prominent venous plexus separates the decidua basalis from the myometrium, thus provides a plane cleavage for placental separation
After 30th week
31
Maximal secretion of hCG
8-10 weeks
32
hCG detectable in plasma of pregnant woman
7-9 days after mid cycle surge of LH
33
hCG begin to decline
10-12 weeks
34
hCG takes over CL
8 days after ovulation or 1 day after implantation
35
hPL detected in trophoblast
2nd-3rd week after fertilization
36
hPL identified in cytotrophoblast
Before 6 weeks
37
hPL demonstrable in placenta
5-10 days after conception
38
Detected in maternal serum
3 weeks post fertilization
39
hPL rises
Until about 34-36 weeks
40
Placental hGH-V
21-26 weeks
41
Inc in concentration
36 weeks
42
Increase in utero placental blood flow near term
450-650ml/min
43
CL functions maximally
1st 6-7th week of pregnancy --4-5 weeks post ovulation
44
FSH don't reach perimenopausal level until
5 wks postpartum
45
Metabolic rate by 3rd trimester
Increased by 10-20%
46
Approx wt gain
12.5 kg or 27.5 lbs
47
Min amt of extra water that average woman accrues
6.5L
48
Average increase in erythrocyte volume
450ml
49
Most important change in cardiac function
First 8 weeks of pregnancy
50
Increase in CO
5th week
51
Increase in plasma volume
Weeks 10-20
52
Increase in resting pulse rate
10beats/min
53
Patent vagina
6th month of life

OB-Gyn (12 decks)

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