Anesthesia Knowledge Test-6 (AKT-6) Practice

In hypothyroid patients undergoing anesthesia, bradycardia is a commonly observed cardiovascular effect. This occurs because hypothyroidism is associated with a reduced metabolic rate and decreased overall sympathetic nervous system activity. The thyroid hormones play a significant role in regulating heart rate and cardiac output. In the absence of adequate thyroid hormone levels, patients may exhibit a slower heart rate as the body adapts to the lower metabolic demands.

During anesthesia, additional factors such as the effects of anesthetic agents, which can also influence heart rate, might contribute to the observed bradycardia. Therefore, in the context of hypothyroidism, bradycardia becomes a prominent feature during anesthesia induction and management, highlighting the need for careful monitoring and potential adjustments in anesthetic technique and agent selection.