Unstable angina is chest pain that occurs at rest or with less and less exertion; the pain may become severe and last longer and it may not respond to nitroglycerin or rest.
Unstable angina is a change from stable angina—a pattern of predictable chest pain that is relieved by rest. Unstable angina is a warning sign that blood flow to the heart has become more impaired and that a heart attack may soon occur.
Unstable angina requires immediate medical evaluation.
Caroline Rea, RN, BS, MS
Adam Husney, MD - Family Medicine
Kathleen Romito, MD - Family Medicine
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