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OBGYN 3 Exam 1 > 1st Trimester > Flashcards

1st Trimester Flashcards

1
Q

indications for 1st tri ultrasound

A
  1. confirm presence
  2. cause of bleeding
  3. eval pain
  4. confirm cardiac motion
  5. estimate gestational age
  6. eval maternal pelvis
  7. molar preg.?
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2
Q

goals of a first tri ultrasound

A
  1. presence,location,#, size of sac
  2. presence of yolk sac
  3. heart activity
  4. NT
  5. fetal age
  6. early diagnosis of anomalies
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3
Q

disadvantages of 1st tri scan

A

-not able to detect anomalies
-minor abnormalities unclear
-high spontaneous abortion rate

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4
Q

when do HCGs double

A

every 48-72 hrs

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5
Q

what is the HCG level for when a sac is seen

A

2000

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6
Q

elevated AFP indicates

A

fetal anomalies

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7
Q

what can cause date discrepancy

A

wrong dates
fibroids
multiple gestations
molar
retroverted uterus
uterine anomalies

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8
Q

when is the heart formation complete

A

week 8

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9
Q

UG system week 8 milestone

A

primitive kidneys

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10
Q

UG system (urogenital) week 11 milestone

A

kidneys in adult position
genitalia visualized

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11
Q

musculoskeletal week 6 milestone

A

formation of limb buds

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12
Q

musculoskeletal week 8 milestone

A

clavicle ossify

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13
Q

musculoskeletal week 9 milestone

A

vertebral bodies

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14
Q

potential spaces in the first tri

A

endometrial canal
chorion/amnion seperation
implantation bleed
necrotic fibroid

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15
Q

abnormal gestational sac major criteria

A

greater than 8mm without yolk sac
greater than 16mm without embryo

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16
Q

minor criteria for ABN gestational sac

A

thin decidua reaction less than 2mm
irregular contour
low position

17
Q

yolk sac abnormals

A

ges. sac greater than 8mm
yolk sac greater than 6mm
calcification/irregular shape

18
Q

symptoms of A-embryonic preg.

A

bleeding
pain
not experiencing normal pregnancy signs

19
Q

most common location for ectopic

A

ampulla

20
Q

what are the causes for an ectopic

A

hormones
damaged tubes
genetic abnormalities
endometriosis
smoking

21
Q

symptoms of ectopic

A

abdmonial rectal or one sided pain
bleeding
dizziness

22
Q

increased risk factors for an ectopic

A

previous ectopic
STI
IVF
IUD

23
Q

until when should a yolk sac be seen

A

10 weeks

24
Q

what to look for during an ectopic pregnancy

A

corpus luteum
blood supply

25
Q

symptoms for a sub chorionic hematoma

A

bleeding
pain

26
Q

what is the measurement for when a nuchal should be performed

A

45-84 mm

OBGYN 3 Exam 1 (4 decks)

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