Q: In massive hemoptysis - For massive right-sided pulmonary bleeding, the left mainstem bronchus intubation over bronchoscope is preferred but the unilateral intubation of the right lung with massive left-sided bleeds is not recommended. What is the reason?

Answer: For massive right-sided pulmonary bleeding, the left mainstem bronchus is intubated over the bronchoscope. Unilateral intubation of the right lung with massive left-sided bleeds is not recommended due to the risk of right upper lobe occlusion. Alternative in this case is to use a double lumen endotracheal tube to isolate the unaffected lung.