This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
A patient presents with swelling in the neck following a thyroidectomy; what is the most likely resulting complication: 
Select and explain. 
A. Respiratory obstruction, B. Recurrent laryngeal nerve palsy, C. Hypovolemia, D. Hypocalcemia
A: Respiratory obstruction
Answer: A: Respiratory obstruction 
Explanation: In this case, the swelling is due to tension haematoma which is a complication of thyroidectomy. Hence the resulting complication will be respiratory obstruction secondary to laryngeal oedema. Ref: Harrison's Internal Medicine, 18th Edition, Page 362; Bailey and Love's Sho Practice of Surgery, 25th Edition, Page 790 and 23rd Edition, Page 727.