A 24-year-old female asked:
I'm 18 weeks pregnant and i just had an ultrasound with a biparital diameter of 19 weeks and femur lenght of 18 w is that normal or the head is large?
1 doctor answer • 1 doctor weighed in
Radiology - Interventional 22 years experience
Within normal: The age is an estimate based on multiple studies. You cannot look at each individually. Also, the older the fetus, the less accurate the dating.
Created for people with ongoing healthcare needs but benefits everyone.
5.4k viewsAnswered >2 years ago
Last updated Dec 31, 2012
Connect with a U.S. board-certified doctor by text or video anytime, anywhere.
$44 video appointments with $19/month membership*
*Billed $57 every 3 months. Cancel anytime.
Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.