The preoperative testing regimen for diagnosing thyroid disorders follows a structured plan of history taking,neck palpation,imaging scans,and fine needle aspiration.Select the statement from that is an appropriate reflection of a thyroid diagnostic study.

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Ultrasonic scans evaluate thyroid nodules and are useful to determine the size and number of nodules within the thyroid as well as to monitor size progression during follow-up.In addition to palpation of the thyroid gland for size,contour,consistency,lymph nodes,fixation,tenderness,and bruits,scans are used to clarify thyroid anatomy.CT and MRI scans are used to assess a thyroid with suspected malignancy for encroachment of the tumor outside the thyroid capsule into the adjacent tissue of the neck.Scans are the most effective means to evaluate local invasion of surrounding tissue.Fine needle aspiration is usually performed under ultrasound guidance.Several samples are aspirated from various parts of the nodule.

The Preoperative Testing Regimen for Diagnosing Thyroid Disorders Follows a Structured