Reasons for nonuse of recommended heart failure medications or the prescription of lower than the recommended doses of these medications should be recorded. Each patient’s functional capacity should be assessed. Although measures of functional status other than the NYHA system have been proposed, the landmark trials solely used this as an inclusion criterion. Thus, at a minimum, assessment of functional class should include the patient’s NYHA class. Six-minute hall walk distance, disease-specific health-related quality of life, and cardiopulmonary testing should also be considered. In addition, the QRS duration should be measured from a standard 12-lead electrocardiograph and the LVEF quantified using a validated assessment method. The results of these assessments should be recorded in the patient’s medical record.