Which one of the following statements about the gestational sac is false?
A) The earliest structure observed with the sac is the yolk sac.
B) The earliest structure may be seen with transvaginal ultrasound.
C) Blood tests should be positive 7 to 10 hours after conception.
D) The placenta is seen as a thickened density along part of the margin of the gestational sac.
Correct Answer:
Verified
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