Sutures and Wound Repair/ General Surgery (ABSA) Practice Test

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Which structures must be carefully preserved during a thyroidectomy to avoid complications?

Parathyroids
Thymus
Adrenal glands
Pancreas

The correct answer is: Parathyroids

During a thyroidectomy, it is crucial to carefully preserve the parathyroid glands to avoid complications such as hypoparathyroidism. The parathyroid glands are small, typically four in number, and are located on the posterior surface of the thyroid gland. They are responsible for regulating calcium levels in the body through the secretion of parathyroid hormone (PTH). If these glands are inadvertently removed or damaged during surgery, it can lead to a significant decrease in PTH levels, resulting in hypocalcemia, which can cause symptoms such as muscle cramps, tetany, and even seizures. Therefore, meticulous surgical technique is necessary to identify and safeguard these glands during thyroid surgery. The other structures listed—the thymus, adrenal glands, and pancreas—do not have a direct relationship with thyroid gland function or the complications arising from a thyroidectomy. While they are important in their respective roles in the endocrine system, they do not require preservation during a thyroidectomy, which primarily focuses on the thyroid gland and associated structures.