IBU/APS Selection Guidelines 6/10/2026 These guidelines provide assistance in selecting when an IBU interview or an APS is most appropriate. First select a CLASSIFICATION in the left column. Then select a SUBCATEGORY from the middle column. IBU/APS selection guidelines are presented in the RECOMMENDATIONS column. CARDIOLOGY CARDIOLOGY CONNECTIVE TISSUE DISEASES DERMATOLOGY EAR, EYE, NOSE AND THROAT ENDOCRINOLOGY GASTROENTEROLOGY GENITOURINARY GYNECOLOGY HEMATOLOGY MISCELLANEOUS NEUROLOGY PSYCHIATRY PULMONARY RHEUMATOLOGY VASCULAR Endocarditis Angina Pectoris Angioplasty (PTCA) Aortic Regurgitation/Stenosis Arrhythmia Atrial Fibrillation/Flutter Bypass (CABG or Femoral) Cardiac Catherization Cardiomegaly Cardiomyopathy Chest Pain Congenital Heart Disease Congenital Heart Disorders Congestive Heart Failure CHF Echocardiogram Endocarditis Holter Monitor Hypertension Hypertrophy Mitral Regurg/Stenosis Mitral Valve Prolapse (MVP) Murmur Myocardial Infarction Myocarditis Pacemaker Pericarditis PVC Stress Test CARDIOLOGY → Endocarditis Order an IBU unless any of the following are disclosed: - Acute episode within the past 6 months - Multiple episodes with most recent in the past 2 years - Any known underlying valvular disease or significant residuals from single episode © IBU, Inc. 2026 • 9450 SW Gemini Drive, PMB 26517 • Beaverton, OR 97008-7105 • 877-203-4592