Mr. Rasiah is a 65-year-old man with a history of smoking. He has recently been complaining of angina during his exercise routine that he does weekly. He once collapsed while conducting yard duty where paramedics were called to the scene to find him unconscious, not breathing, and without a pulse. CPR was successfully performed, and Mr. Rasiah was immediately taken to a nearby hospital. An ECG was indicated an anterior wall myocardial infarction, and Mr. Rasiah was administered an intravenous solution of tissue plasminogen activator (TPA). Increased blood creatine phosphokinase levels recorded over the next two days further confirmed his diagnosis. 4. Which precisely describes the stress placed upon Mr. Rasiah’s heart i) increased pre-load or ii) increased afterload. Choose one and briefly explain why. [2 points]
