The reason: Our current tools (physical exams paired with transvaginal ultrasound and a blood test to check for the presence of CA125, a tumor marker) result in a high rate of false positives, which can lead to emotional distress and possibly unnecessary surgery. (health.com)
Week 6 The heart has now started beating and can often be seen early in the 6th week by transvaginal ultrasound. (babymed.com)
Conversely, the various Republican bills forcing women who want abortions to get a medically unnecessary transvaginal ultrasound — same thing in reverse. (scientificamerican.com)