Complex sentence: Cardiac nursing is a loose term that includes many sub-specialty areas that relate to patients with problems of the heart and related systems, such as unstable angina, cardiomyopathy, congestive heart failure, myocardial infarction and cardiac dysrhythmia.
Split into simpler sentences: Cardiac nursing is a loose term that includes many sub-specialty areas that relate to patients with problems of the heart and related systems. This includes conditions such as unstable angina, cardiomyopathy, congestive heart failure, myocardial infarction and cardiac dysrhythmia.