<prompt> Most commonly utilized Intercostal Space for Pericardiocentesis is:Left 5th Intercostal SpaceLeft 6th Intercostal SpaceRight 5th Intercostal SpaceRight 6th Intercostal Space  <response>: Answer is A Left 5th Intercostal Space Left Fifth Intercostal Space is the most commonly utilized space fir Parasternal Pericardiocentesis There are various sites for aspiration but the two commonest sites used are the sub-xiphoid and the left fifth intercostal space. The sub-xiphoid approach is the much preferred route, as one can aspirate fluid even in the case of small effusions. This route is extra-pleural and avoids the coronary, pericardial, and internal mammary aeries. 