**Question:** Complications of total thyroidectomy are all, EXCEPT:

A. Hypocalcaemia (low blood calcium levels)
B. Hypothyroidism (low thyroid hormone levels)
C. Hyperthyroidism (high thyroid hormone levels)
D. Dysphagia (difficulty swallowing)

**Core Concept:**
Total thyroidectomy is a surgical procedure that involves the removal of the entire thyroid gland. The thyroid gland is responsible for producing thyroid hormones, which play a crucial role in regulating the body's energy and growth rates. Complications may arise due to the surgical procedure or due to the effects of removing the thyroid gland.

**Why the Correct Answer is Right:**
Hypocalcaemia (A) and hypothyroidism (B) are direct complications of total thyroidectomy. When the thyroid gland is removed, the body's production of thyroid hormones significantly decreases, leading to hypocalcaemia and hypothyroidism.

Dysphagia (D) is also a potential complication, but it is not directly related to the thyroid gland or its hormones. Dysphagia can result from surgical injury to surrounding structures, such as the recurrent laryngeal nerves, which control the movement of the vocal cords and muscles involved in swallowing.

**Why Each Wrong Option is Incorrect:**
Hyperthyroidism (C) is the opposite effect of hypothyroidism (B) and does not occur as a complication of total thyroidectomy. Hyperthyroidism is caused by excess thyroid hormone production, usually due to the presence of an overactive thyroid gland or thyroid hormone overproduction.

**Clinical Pearl:**
When assessing patients undergoing total thyroidectomy, it is essential to monitor for hypocalcaemia and hypothyroidism as potential complications. Dysphagia should be considered if swallowing difficulties arise, but hyperthyroidism is not a complication of this procedure. Monitoring thyroid hormone levels can help identify and manage these complications appropriately.