<prompt> In an adult patient with pleural effusion, which of the following is the most appropriate site for pleurocentesis?5th intercostal space in mid clavicular line7th intercostal space in mid axillary line2nd intercostal space adjacent to the sternum10th intercostal space adjacent to the veebral column  <response>: In an adult patient with pleural effusion, pleurocentesis is done by inseing a needle in the 7th intercostals space in the mid axillary line. Safest site for inseion of chest drain is in the triangle: Anterior to mid axillary line Above the level of the nipple Below and lateral to the pectoral is major muscle This will ideally find the fifth intercostals space. Ref: Textbook of Pediatrics Iap By Pahasarathy - Jaypee Brothers, Medical Publisher, 3rd Edition, Pages 459-60; Bailey and Loves Sho Practice of Surgery, 25th Edition, Page 880; Davidsons Principles and Practice of Medicine, 21st Edition, Page 660 