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: Medicine
[{'content': 'Preferred Approach for Pericardiocentesis is: \nSelect and explain. \nA. Sub-xiphoid, B. Left Parasternal, C. Right Parasternal, D. Apical', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Answer is A (Sub-xiphoid) Closed-needle pericardiocentesis the sub-xiphoid is the preferred approach for removal and drainage of a pericardial effusion. The sub-xiphoid approach is preferred, as one can aspirate fluid even in the case of small elliisions. This route is extra-pleural and avoids the coronary, pericardial, and internal mammary aeries. Approaches to Pericardiocentesis 1. Sub-xiphoid Approach (Preferred Approach as this route is extra-pleural and avoids the risk to coronary, pericardial, and internal mammary aeries) 2. Apical Approach (Used when the sub-xiphoid route is not successful or in patients with marked pulmonary hypeension) 3. Parasternal Approach (Left Fifth Intercostal Space and/or Right Fifth Intercostal Space may be utilized; Left Fifth Intercostal Space is utilized more commonly)', 'role': 'assistant'}]