1 Question: OB (Click the link to comment and to vote – voting not working through email, sorry!) Anonymous VoteSign in with WordPressWhich of the following is true of ectopic pregnancy?A) The majority of women with ectopic pregnancy have a known risk factorB) A negative urine pregnancy test rules out ectopic pregnancyC) A woman with a beta-HCG level of 1000 mIU/mL but no visible evidence of IUP on TVUS has an ectopic pregnancyD) A rise in beta-HCG of < 53% in 48 hours confirms abnormal pregnancyE) Evidence of an IUP on TVUS rules out ectopic pregnancyvote×Username or Email AddressPasswordLog In OB pemsou5_wp • January 28, 2020 ↞ Previous PostTo Tamiflu or Not Next Post ↠Question: Heme
Kelly January 28, 2020 - 4:03 pm
D) A rise in beta-HCG of < 53% in 48 hours confirms abnormal pregnancy
While the “discriminatory zone” of 1000-2000 mIU/mL is when clinicians expect to be able to see evidence of intrauterine pregnancy (IUP) on transvaginal ultrasound (TVUS), correlation is not perfect – patients with higher beta-HCG may have a viable pregnancy yet no signs of IUP on TVUS, and patients with beta-HCG < 1000 may still show evidence of IUP on TVUS. There are rare cases of negative urine pregnancy test and ectopic (false negatives for various reasons). About half of women with ectopic have a known risk factor. Rarely, heterotopic pregnancy can occur, which is an IUP and an ectopic pregnancy; this is more common in those who have undergone assisted reproduction.