6 day difference: The best that is claimed for U/S is +/- 14 days so determination is well within the limits of precision of the examination. All quantitative tests have a precision and an accuracy. Ask your doc to explain the difference to you for any given exam done on you. They are different and have very different meanings!
Answered 10/5/2015
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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