The DNP project is about the risk of angio-edema in african american using Ace inhibitor to control Blood Pressure. The goal of the intervention is to prevent the occurrence of drug-induced angioedema among African Americans and to improve patient outcomes after treatment with anti-hypertensive medications. The first objective is to train the healthcare providers (cardiologists, physicians, and nurse practitioners) to evaluate patients for the risk of drug-induced angioedema so that they will be detecting cases fast before development of complications. The second objective is to introduce the use of calcium blockers and thiazide diuretics to replace ACEIs as first-line drugs when treating African Americans for hypertension. The third objective is to introduce the C1 esterase inhibitor and icatibant drugs for the treatment of angioedema.