Q. A 45-year-old male patient has presented to the medical outpatient department with a family history of thyroid cancer. He complains of headaches, fatigue, sweating, and palpitations. On physical examination, a thyroid nodule is palpated. His blood pressure is 125/85 mm Hg, his pulse is 80 beats per minute, and his respiratory rate is 20 breaths per minute. Furthermore, laboratory investigations reveal elevated levels of serum calcitonin. Genetic testing confirms a diagnosis of multiple endocrine neoplasia type 2 A. Which of the following is the appropriate management in this case?