Several reasons: Ultrasound is very good for determinig if there is a thyroid nodule or the gland is big or small. If the doctor felt something on exam, they would want to further characterize it. Also, if the thyroid function tests are abnormal, that could prompt and ultrasound exam.
Answered 9/3/2013
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3 doctors weighed in across 2 answers
A doctor has provided 1 answer
A doctor has provided 1 answer
3 doctors weighed in across 2 answers
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