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 Congenital Heart Disease 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 → Congenital Heart Disease Order an IBU unless any of the following are disclosed: - Atrial Septal Defect - Unoperated with significant symptoms or surgery pending - Ventricular Septal Defect - Unoperated with significant symptoms or surgery pending © IBU, Inc. 2026 • 9450 SW Gemini Drive, PMB 26517 • Beaverton, OR 97008-7105 • 877-203-4592