98 Ectopic Pregnancy and emergencies in the first 20 weeks Flashcards
Most common cause of abdominal ectopic pregnancy
most commonly derive from early rupture or abortion of a tubal pregnancy, with subsequent reimplantation in the peritoneal cavity.
Problem with cesarean scar pregnancy
cause massive maternal hemorrhage.
Significance of progresterone in ectopic pregnancy
with progresterone under 5ug/dL, there is almost 100% chance that it is pathologic
What is the only thing that can confirm a pregnancy on ultrasound?
yolk sac
Rate of heterotopic pregnancy
1/3000. Much higher now with IVF
relationship of bladder to ectopic pregnancy ultrasounds
bladder should be full for transabdominal b/c it good acoustic window. Should be empty for transvaginal.
WHen can we see gestational sac, yolk sac, and fetal pole?
4.5, 5.5 and 6 weeks. by transabdominal about 1 week later for each.
Ultrasound finding most specific for ectopic
hepatorenal free fluid
discriminatory zone for transvag and transabd. roughly
1500 and 6000
When you should use multiple doses of methotrexate for ectopic?
fetal cardiac activity or BHCG >5000
three most common side effects of methotrexate?
abd. pain, flatulence, and stomatitis
preferred tx for ectopic?
methotrexate. it has shown similar success rates vs laparoscopic salpingectomy and salpingostomy without the side effects.
problem with the known side effect of methotrexate?
abd. pain. is a problem b/c it is hard to distringuish between normal pain and a tubal rupture or another cause of abd. pain.
Why should you not do many pelvic exams after methotrexate administration?
reduce risk of tubal rupture.
most important d/c instructions for patients with ectopic and methotrexate administration?
Refrain from sex 14-21 days after treatment because of risk of rupture.
Timeline and doses for rhogam administration
within 72 hours of fetal maternal mixing. if prior to 12 weeks, do 50mcg. if after, do 300 mcg.
definition of spontaneous abortion
Loss of a fetus less than 20 weeks or less than 500 grams
Home care for patients with threatened abortion?
No sex, or tampons. bed rest.
Treatment for septic abortion?
ampicillin/sulbactam 3g IV, clindamycin 600mg with Gentamycin 1-2mg/kg
Most common symptoms of gestational trophoblastic disease?
vaginal bleeding (75%) hyperemesis (25%)
differnet between molar pregnancy and GTD?
molar pregnancy is in first trimester, GTD perists into second
When pregnancy-induced hypertension is seen before 24 weeks of gestation, consider the possibility of
molar pregnancy
tx for molar pregnancy/GTD?
suction curettage
Worst comlications of GTD?
metastasis and trophoblastic embolization that can become an amniotic fluid embolus
The presence of,in nausea and vomiting of pregnancy or hyperemesis gravidarum is highly unusual and should suggest another diagnosis
abdominal pain
pros/cons of compazin/phenergan vs zofran?
Zofran is expensive and causes headaches. the other two are like the antispychotics and can cause dystonic reactions.