<prompt> The intercostal drainage tube is inseed in the5th intercostal space in the midaxillary line3rd intercostal space in the midaxillary line4th intercostal space in the anterior axillary line9th intercostal space in the midclavicular line  <response>: Answer- A. 5th intercostal space in the midaxillary lineSafe triangle of icd inseionAnterior border of latissimus dorsi.Lateral border ofpectoralis major.Horizontal line superior to the nipple.Horizontal line inferior to axilla.More specifcally, the tube is inseed into the 46 or 5th intercostal space slightly anterior to the mid axillary line 