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OBGYN Exam 3 > Fetal Kidneys > Flashcards

Fetal Kidneys Flashcards

1
Q

when do the kidneys begin to develop

A

7 weeks

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2
Q

when does the bladder start to form

A

8 weeks

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3
Q

when do the kidneys ascend to renal fascia

A

10 weeks

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4
Q

urinary fully bladder develops when

A

12 weeks

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5
Q

when does genitalia fully form

A

14 weeks

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6
Q

when are the kidneys visual

A

by 20 weeks

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7
Q

does does urine production begin

A

11 weeks

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8
Q

what vessels are lateral to the bladder

A

internal iliac arteries

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9
Q

horse shore kidneys

A

kidneys attached at the lower pole

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10
Q

unilateral kidney agenesis

A

no oligo
bladder is visualized
kidney enlarged

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11
Q

when can bilateral renal agenesis be diagnosed

A

16 weeks

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12
Q

bilateral renal agenesis is more common in males or females

A

males

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13
Q

most severe GU anomaly

A

bilateral renal agensis

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14
Q

sono characteristics of bilateral renal agenesis

A

non vis. of bladder or kidneys
dolichocephalic head
small thorax
oligo between 16 to 28 weeks

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15
Q

pyelectasis dilation between 15 and 20 weeks

A

> 4 mm

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16
Q

pyelectasis dilation between 20 to 30 weeks

A

> 8 mm

17
Q

pyelectasis dilation after 30 weeks

A

> 10mm

18
Q

dilatation w/ obstruction

A

UPJ
UVJ
PUV

19
Q

UPJ

A

most common
contralateral kid. functions normal
dilated renal pelvis

20
Q

UVJ obstruction

A

usually duplication anomaly of ectopic ureterocele
dilated upper pole of kidney

21
Q

PUV

A

most common bladder outlet obstruction
more common in males
membranous fold in posterior urethra

22
Q

PUV sono findings

A

bladder wall thickening
BL dilation
hydro
oligo

23
Q

MCDK

A

most common incidental finding
enlarged kidneys
contralateral usually abnormal

24
Q

MCDK sono findings

A

lobulated reniform shape
multiple cyst
increased echogenicity

25
Q

cryptorchidism

A

undescended testes

26
Q

prune belly syndrome

A

deficient abd musculature
cryptorchidism
gu anomaly

27
Q

prune belly on sono

A

oligo
hydro
ascites
pulmonary hypoplasia
dilated ureters & bladders

28
Q

ARPKD

A

loss of cortico medullary junction
multiple cyst, enlarged kidneys, decreased renal function

29
Q

ARPKD on sono

A

echogenic kidneys
enlarged kidneys
decrease amniotic fluid

30
Q

ADPKD

A

enlarged kidneys and hyperechoic
fluid normal or reduced

31
Q

when is ADPKD seen

A

3rd tri

32
Q

causes of cytic masses in fetal abdomen

A
33
Q

fetal ovarian cyst

A

related to hormones
uncommon
hard to differentiate

34
Q

fetal hydrocele

A
35
Q

when can adrenal glands be seen

A

9.5 weeks

36
Q

adrenal hemorrhage

A

OBGYN Exam 3 (4 decks)

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