What complication is most associated with untreated hypothyroidism?

• A. Stroke
• B. Myxedema coma
• C. Cardiac arrest
• D. Thyroid storm

Answer: (B)

Myxedema coma is a severe and life-threatening complication associated with untreated hypothyroidism. It occurs when there is a significant and prolonged deficiency of thyroid hormones, leading to a state of extreme metabolic slowdown. Key features of myxedema coma include severe hypothermia, diminished level of consciousness, hypotension, bradycardia, and a range of electrolyte imbalances.

In the absence of appropriate thyroid hormone replacement, the body's physiological processes can become critically impaired due to the low metabolic rate. Myxedema coma is often precipitated by factors such as cold exposure, infection, trauma, or the use of sedatives. This condition requires immediate medical intervention, typically involving intravenous thyroid hormone replacement and supportive care.

Understanding the life-threatening nature of myxedema coma highlights the importance of diagnosing and treating hypothyroidism promptly to prevent such severe complications.