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
False about tracheostomy is: 
Select and explain. 
A. Decrease dead space, B. Increase dead space, C. Increased lining secretions, D. Work of breathing reduced
B: Increase dead space
Answer: B: Increase dead space 
Explanation: Tracheostomy reduces dead space by around 150 ml. This helps to reduce work of breathing and is helpful in patients with chronic lung diseases and reduced respiratory efforts.