Effective: 10/19/94. sed: 10/30/14. Continued next page. Continuous Nebulized Bronchodilator Therapy. (Large and Medium Volume Continuous Nebulizer) Purpose To standardize the use of continuous aerosol therapy as a modality used for. the rescue of patients with severe bronchospastic disease who do not. respond to conventional therapy. This is not a replacement for routine, periodic treatment.