<prompt> While doing thoracocentesis, it is advisable to introduce needle along?Upper border of the ribLower border of the ribIn the center of the intercostals spaceIn anterior pa of intercostals space  <response>: Thoracocentesis is a surgical puncture on the chest wall for aspiration of fluid or air from the pleural cavity. It is advisable to introduce needle along the upper border of the rib to avoid avoid the neurovascular bundle that runs below the rib.Also Know:Never remove more than 1000-1500 mL per tap in patients with chronic effusions eg, malignant effusions. Doing so can cause hypotension or development of pulmonary edema due to reexpansion of compressed alveoli. 