A 23-year-old female asked:
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how accurate is a dating scan at 14 weeks (gestational age) ?

1 doctor answer
Dr. Jeff Livingston
22 years experience Obstetrics and Gynecology
Very: It has a 5-7 day margin of error. It is quite accurate.
Answered on Dec 29, 2018
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Related questions:

A 24-year-old female asked:
Dr. Dennis Higginbotham
30 years experience Obstetrics and Gynecology
Yes: The earlier the scan, the more accurate it is. An 8 week scan is accurate to within about 4 days, by 14 weeks the range of error is about 7 to 10 day ... Read More
A 25-year-old female asked:
Dr. Alan Patterson
42 years experience Obstetrics and Gynecology
Please call your OB: A 12 week scan should only be off 3-4 days each way at the most, please call your OB to discuss.
A 18-year-old member asked:
Dr. Philip Miller
A Verified Doctor answered
A US doctor answered Learn more
Untrue: this is inaccurate: ultrasounds are certainly quite sensitive at both 7-8 weeks. Consult your oB- there is no logic in this statement.
1
1 thank
A 22-year-old female asked:
Dr. Robert Kwok
33 years experience Pediatrics
Unlikely: Ultrasound dating is very accurate when done around 8-11 weeks of gestation. But, as always, life is not perfect and mistakes can happen. A woman shou ... Read More
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2 thanks

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