obs2 Flashcards

1
Q

what is an ectopic pregnancy?

A

implantation outside uterine cavity

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2
Q

what are the most common sites of ectopic?

A

ampulla and isthmus of fallopian tube

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3
Q

what are the risk factors for ectopic?

A
previous ectopic
pelvic inflammatory disease (adhesions)
endometriosis (adhesions)
IVF
progesterone contraceptive
implant
IUD
pelvic surgery
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4
Q

how does ectopic present?

A

pain +/- bleeding

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5
Q

why is there PV bleeding in ectopic?

A

decidua breakdown following reducing HCG levels

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6
Q

where does blood from a ruptured ectopic go

A

intra-abdominal

may irritate diaphragm and cause shoulder pain

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7
Q

what are signs on exam of ectopic?

A
  • abdo pain
  • cervical excitation
  • adnexal tenderness
  • patient may be haemodynamically unstable - shock, pallour
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8
Q

how is ectopic investigated?

A
  • pregnancy test

- pelvic USS

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9
Q

what is the cut off point for hcg for ectopic?

A

1500

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10
Q

what is medical mgmt of ectopic?

A

im methotrexate

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11
Q

what is surgical mgmt of ectopic?

A

laparoscopic salpingectomy

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12
Q

what must be given to rh neg women who undergo surgical treatment of ectopic?

A

anti d

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13
Q

why is there ruq pain in pre-eclampsia?

A

stretching of liver capsule due to oedema and haemorrhage

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14
Q

what are the symptoms of obstetric cholestasis?

A
itching, mainly palms and soles
jaundice
NO RASH
dark urine
(itching may be worse in evening)
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15
Q

how is obstetric cholestasis treated?

A

urso

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16
Q

how is obstetric cholestasis managed?

A

monitor lfts weekly

induce at 37 as induced risk of stillbirth

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17
Q

how do you treat profuse bleeding in miscarriage?

A

ergometrine

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18
Q

how do you medically manage miscarriage?

A

misoprostol, if no bleeding after 24hrs, come again

analgesia and antiemetic

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19
Q

how do you treat a miscarriage with bleeding?

A

medically with misoprostol, as there is increased risk of haemorrhage

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20
Q

when would you medically treat a miscarriage?

A

bleeding
previous adverse/traumatic event
signs of infection

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21
Q

what is a tender/tense uterus + bleeding a sign of?

A

placental abruption (+ back ache if posterior!)

22
Q

why is it important to check for domestic abuse in placental abruption?

A

trauma can cause placental abruption

23
Q

list some risk factors for placental abruption

A
PROM
IUGR
previous
trauma
cocaine
smoking
24
Q

how do you manage fetal distress in abruption?

A

deliver vaginally

25
Q

what are the complications of abruption for mum?

A

PPH
DIC
renal failure
shock

26
Q

what are the complications of abruption for fetus?

A

IUGR
hypoxia
death

27
Q

why is placenta praevia bad?

A

can obstruct birth canal, bleeding

28
Q

what is the threshold for pcr for pre-eclampsia

A

> 30

29
Q

why is aspirin given for pre-eclampsia?

A

prevent stroke

30
Q

until when should mgso4 be continued?

A

24 hrs after delivery/last seizure

31
Q

causes of APH

A

placenta praevia

placental abruption

32
Q

how does placenta praevia present?

A

painless pv bleeding

33
Q

how does abruption present?

A

painful bleeding and woody hard uterus

34
Q

what does fetal lie refer to?

A

relationship between long axis of fetus and mum

35
Q

what are the different types of fetal lie?

A

longitudinal
transverse
oblique

36
Q

what does fetal presentation refer to?

A

fetal part which first enters pelvis

37
Q

what are the different types of fetal presentation?

A
cephalic
breech
shoulder
face
brow
38
Q

what does fetal position refer to?

A

position of head as it exits canal

39
Q

what are different types of fetal positions?

A

occiput-anterior (IDEAL)
occiput-posterior
occiput-transverse

90% of babies rotate during birth.

40
Q

what are the risk factors for abnormal fetal lie/position/presentation?

A
  • prematurity
  • multiple pregnancy
  • uterine abnormalities
  • fetal abnormalities
  • placenta praevia
  • primiparity
41
Q

how is fetal position assessed?

A

vaginal exam (fontanelles)

42
Q

how is lie and presentation assessed?

A

abdo exam

43
Q

how is fetal lie managed?

A

if >36, ECV

44
Q

when is ECV contraindicated?

A
  • previous c section
  • recent APH
  • ruptured membranes
  • uterine abnormalities
45
Q

in which presentations are c-sections necessary?

A

shoulder
brow
mento-posterior

46
Q

what is cord prolapse?

A

umbilical cord descends through cervix with/before presenting part of fetus. can cause hypoxia

47
Q

why is there hypoxia in cord prolapse?

A
  • compression by fetus

- arterial vasospasm bc cold

48
Q

what are the risk factors for cord prolapse?

A
breech (footling)
unstable lie
artificial rupture of membranes
polyhydramnios
prematurity
49
Q

what are the signs of cord prolapse?

A
fetal distress - non-reassuring trace
PV bleeding (due to abruption)
50
Q

how is cord prolapse managed?

A
  • avoid handling to prevent vasospasm
  • elevate presenting part
  • consider tocolysis with terbutaline to relieve pressure off the cord
  • encourage into left lateral position
  • deliver by quickest mode: c-section
51
Q

what does non-reassuring trace and fetal membranes suggest?

A

cord prolapse