Tracheal displacement

With the patient's head centered, use the right middle finger to touch the trachea backward along the sternal notch. The index finger and ring finger are on the left and right sternoclavicular joints respectively to see if the middle finger is equidistant from the other two fingers, or touch the middle finger to the trachea and observe The size of the gap formed by the middle finger and the papillary muscles on both sides to determine whether the trachea is displaced. Tracheal displacement is of great significance in the diagnosis of chest diseases.