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.