Q: At what B-hCG value is the gestational sac first seen? show answer
Q: At what gestational age is a gestational sac normally seen with an endovaginal ultrasound study? show answer
Patient presents with vaginal bleeding. B-hCG = 977. LMP 4-5 weeks ago.
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This case is meant to review the possible follow up scenarios of a pregnancy of unknown location (PUL).
In this situation, the patient has a positive B-hCG (977), so one can assume that gestational tissue is located somewhere... but where?
There are three main options at the moment:
In this setting, one could make an argument for any of these possibilities... the only sure thing is that we don't see a normal IUP right now.
Given this, if the patient is asymptomatic with a PUL, she should get a close interval follow up B-hCG and ultrasound (~7 days) to see how the pregnancy is progressing. Two data points over this time frame should give you an idea of what is going on.
If the patient is symptomatic, then referral to OB/GYN is appropriate for management.
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