Your patient has been receiving PEP therapy to help mobilize…

Your patient has been receiving PEP therapy to help mobilize his secretions. The current order states that the patient should achieve a pressure of 10 cmH2O when performing PEP Therapy. The patient has been achieving this pressure, however, he is still having a tough time coughing out his secretions. What should be done to help the patient better mobilize his secretions?