A tracheostomy cuff is to be deflated, which of the following nursing intervention should be implemented before starting the procedures? Suction the trachea and mouth.Have the obdurator available.Encourage deep breathing and coughing.Do a pulse oximetry reading. Explanation. Secretions may have pooled above the tracheostomy cuff. If these are not suctioned before deflation, the secretions may be aspirated.