OG Flashcards
embryo
fertilization to 8 weeks
fetus
8 weeks to birth
developmental age
number of days since fertilization
gestational age
number of days/weeks since LMP
naegle rule
subtract 3 months, add 7 days
first trimester dates
12 weeks DA
14 weeks GA
second trimester dates
24 weeks DA
26 weeks GA
pre-viable
born before 24 weeks
post term
greater than 42 weeks
F-PAL
full term
preterm
abortions
living children
goodell sign
FIRST sign of pregnancy,
4 weeks
= softening of the cervix
ladin sign
softening of the midline of the uterus,
6 weeks
chadwick sign
blue discolouration of vagina and cervix
6-8 weeks
when does palmar erythema present
first trimester
when does chloasma present
16 weeks
when does linea nigra present
second trimester
US in pregnancy
CONFIRMS INTRAUTERINE
PREGNANCY=
beta hCG greater than 1500 OR
5 weeks= gestational sac on ultrasound
morning sickness caused by
increase in estrogen, progesterone, hCG
other GI complication of pregnancy
constipation
renal in pregnancy
INCREASE GFR–> decrease BUN/cr
haem in pregnancy
- anaemia
- hypercoagulable
most accurate way of establishing gestational age at 11-14 weeks
ULTRASOUND
triple screen
MSAFP, estriol, beta hCG