Respond to the question using the lessons and vocabulary found in the readings. Support your answers with examples and research. Your responses should clarify your understanding of the topic. They should be your own, original, and free from plagiarism. Follow APA format for writing style, spelling and grammar, and citation of sources.

Start reviewing and responding to the postings of your classmates as early in the week as possible. Respond to at least two of your classmates. Participate in the discussion by analyzing each response for completeness and accuracy and by suggesting specific additions or clarifications for improving the discussion question response.

Cardiovascular Case Study

PJ is a sixty-seven-year-old man with a long history of stable angina. He is treated with nitroglycerin tablets as needed for chest pain. He has mild hypertension, which is well controlled by diet and an angiotensin-converting enzyme (ACE) inhibitor. PJ has noticed that his chest pain is occurring with increasing frequency and less activity is required to initiate the symptoms; however, the pain subsides quickly with rest and one or two nitroglycerin tablets.

PJ's symptoms are consistent with what diagnosis? What education would you provide to PJ?

One morning, at about 4:00 a.m., PJ is awakened from sleep with chest pain and shortness of breath. The pain is much more severe than his usual anginal pain and radiates to the jaw and the left arm. He is diaphoretic and pale. His wife calls for emergency assistance, and PJ is transported to the local emergency department. Upon admission, the electrocardiogram (ECG) shows significant ST-segment elevation.

According to the ECG findings, what is the differential diagnosis? At the time of admission, a blood sample is taken to determine whether PJ has suffered an MI. Which laboratory findings would indicate MI? Describe the pathophysiological responses occurring in the body during an MI.