This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory system, Subject name: Medicine
[{'content': 'which position is best in patients suspecting air embolism \nSelect and explain. \nA. Supine, B. Left Lateral, C. Trendelenberg, D. BC', 'role': 'user'}, {'content': 'Answer: D \nExplanation: For venous air embolism the Trendelenburg or left lateral positioning of a patient with an air-lock obstruction of the right ventricle may move the air bubble in the ventricle and allow blood flow under the bubble Ref Davidson edition23rd pg 622', 'role': 'assistant'}]