early pregnancy Flashcards
what is hyperemesis gradivarum
severe form of N+V in pregnancy interfering with qol and with inability to eat or drink normally
what causes HG
hypersensitivity to growth differentiation factor 15 made by the placenta
when does HG peak in pregnancy
20 weeks
what can be used to grade vomiting severity in pregnancy
pregnancy-unique quantification of emesis (PUQE) index
first line antiemetic for patients with vomiting in pregnancy
cyclizine, prochlorperazine
when does a foetus become viable
24 weeks
what is a miscarriage
spontaneous loss of a pregnancy before the foetus reaches viability
name some risk factors for miscarriage
maternal age, previous miscarriage, obesity, substance use, previous uterine surgery, APLS, infections
when do miscarriages most commonly occur
in the first 12-13 weeks
what are the 4 main types of miscarriage
threatened
inevitable
complete
missed
what is a threatened miscarriage
foetus is in uterus + os is closed
mild symptoms -> bleeding
how can we increase the chance of a live birth with a threatened miscarriage
progesterone vaginal supositories
what is an inevitable miscarriage
foetus is in the uterus but the os is open
what is a complete miscarriage
uterus is empty and all products of conception are expelled
os is usually closed
what is a missed miscarriage
foetus is not alive in the uterus, os is closed
what is the main presenting symptom of miscarriage
vaginal bleeding
what is the definitive investigation for miscarriage
transvaginal ultrasound
what investigations are also useful in suspected miscarriage
speculum exam to see if os is open or closed
bloods: serum HCG, FBC
what is the first sign of pregnancy on ultrasound and when is this visible from
gestational sack
4.5-5 weeks on TVUS
what are the 3 main managements of a miscarriage >6 weeks gestation
expectant - watch and wait
medical - misoprostol +/- mifepristone
surgical management - vacuum aspiration
what should be screened for in women having surgical management of miscarriage and how do we manage this
rhesus negative women
anti-rhesus D prophylaxis
what is a complication of an incomplete miscarriage
infection
when would miscarriages be classed as recurrent
3 or more losses
what can be given to pregnant women with antiphospholipid syndrome to prevent miscarriage
aspirin and prophylactic LMWH from positive test