U.S. doctors online nowAsk doctors free
A 24-year-old female asked:

How accurate is a 4 week ultrasound?

2 doctor answers2 doctors weighed in
Dr. Philip Miller
A Verified Doctoranswered
Family Medicine 48 years experience
Fairly accurate: I trust ultrasound imaging. Trust your physician and ultrasound technician.
Created for people with ongoing healthcare needs but benefits everyone.
Dr. Peter Baumann
Specializes in Obstetrics and Gynecology
Early ultrasound: This is not so much a question about accuracy - 4 weeks is just so early that typically you cannot see an embryo of a measurable size nor a heart beat.
Created for people with ongoing healthcare needs but benefits everyone.

Similar questions

Columbus, NE
A 21-year-old female asked:

How accurate is a 14 week ultrasound.

2 doctor answers3 doctors weighed in
Dr. Alan Heideman
Diagnostic Radiology 35 years experience
Accurate: I assume you mean a pregnancy US? It is very accurate in terms of identifying and dating a pregnancy. Please be more specific with regards to what information you are questioning as accurate.
Created for people with ongoing healthcare needs but benefits everyone.
Pueblo, CO
A 23-year-old female asked:

Is a 9 week or 20 week ultrasound more accurate?

1 doctor answer1 doctor weighed in
Dr. Gerald Klein
Radiology 51 years experience
20 week: 20 week study more accurate for fetal anatomy and structure. Both studies equally accurate for viability.
Created for people with ongoing healthcare needs but benefits everyone.
New York, NY
A 22-year-old female asked:

How accurate is a 16 week gender ultrasound?

1 doctor answer1 doctor weighed in
Dr. Hanford Yau
Endocrinology 17 years experience
Quite accurate: By 12 weeks, the fetus is fully formed. All its organs, muscles, limbs and bones are in place, and the sex organs are well developed. So 16 week gender ultrasound is quite accurate. Congratulations and all the best
Created for people with ongoing healthcare needs but benefits everyone.
A 19-year-old female asked:

How accurate is an ultrasound done at 9 weeks?

2 doctor answers2 doctors weighed in
Dr. Shari Jackson
Radiology 22 years experience
Very: For dating a pregnancy, 9 week ultrasound is quite accurate, usually within a few days.
Created for people with ongoing healthcare needs but benefits everyone.
A 23-year-old male asked:

Can a 10 week ultrasound be off by 2 weeks(+/-2 weeks) or is a 10 week ultrasound accurate?

1 doctor answer2 doctors weighed in
Dr. Anthony Filly
Radiology 27 years experience
Accurate: Shouldn't be off by more than a couple of days.
Created for people with ongoing healthcare needs but benefits everyone.

Related questions

A 23-year-old female asked:
How accurate is a 5 week 4 day ultrasound for telling you when you possibly concieved?
1 doctor answer8 doctors weighed in
A 29-year-old female asked:
Is a six week sonogram accurate to plus or minus four days or plus or minus fourteen days?
3 doctor answers4 doctors weighed in
A 40-year-old member asked:
I was wondering is a 4 wk ultrasound more accurate than an 11 week?
1 doctor answer1 doctor weighed in
Last updated Aug 16, 2014

People also asked

Connect with a U.S. board-certified doctor by text or video anytime, anywhere.
24/7 visits - just $39!
50% off with $15/month membership

Disclaimer:

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.