How will you check the functioning of an ICD tube?
By observing for continuous air bubbles coming out of the underwater drain
By observing the movement of air water column in the tube during respiration
By taking X ray chest repeatedly
By auscultation
Chest drainage system: Follow-up: Patency of chest tube is assessed by observing the oscillations in water seal chamber with respiratory movements. Position of chest tube & resolution of intrapleural air or liquid is checked by x-ray (AP & cross table lateral). Tube should be pulled back if it crosses the mediastinum Removal: Chest tubes are generally removed when there has been air or fluid drainage of <200 ml in 24 hours for >24 hours .