John is a 56-year-old man who has been experiencing chest pain and shortness of breath for several weeks. He has a family history of heart disease and has been a smoker for most of his adult life. John is also overweight and has high blood pressure.

Upon examination, John's doctor notes that he has a heart murmur and orders a series of tests, including an electrocardiogram (ECG) and an echocardiogram. The ECG shows signs of a heart attack, and the echocardiogram reveals that John has a blockage in one of his coronary arteries.

John is diagnosed with coronary artery disease, a condition in which plaque builds up in the arteries that supply blood to the heart. The blockage in John's artery is causing his symptoms and putting him at risk for a heart attack.

John's doctor prescribes medication to lower his blood pressure and cholesterol levels, and advises him to quit smoking and make lifestyle changes to improve his overall health. John is also referred to a cardiologist, who recommends a procedure called a coronary angioplasty to clear the blockage in his artery.

During the angioplasty, a small balloon is inserted into John's artery and inflated to widen the blockage. A stent, or tiny mesh tube, is then inserted to keep the artery open. The procedure is successful, and John's symptoms improve.

Following his angioplasty, John undergoes cardiac rehabilitation, which involves exercise and lifestyle counseling to help him manage his heart disease and reduce his risk of future heart problems.

Through a combination of medication, lifestyle changes, and medical procedures, John is able to manage his heart disease and maintain a good quality of life. However, he knows that he will need to continue to take steps to keep his heart healthy and prevent future problems.

Question:

1. What is John's diagnosis?

2. What tests were ordered for John and what did they reveal?

3. What lifestyle changes were recommended for John?

4. What medical procedure was recommended for John?

5. What is the purpose of cardiac rehabilitation?

6. What steps does John need to take to keep his heart healthy?