Problem
A 45year old black male was mowing his lawn. The heat index was 103 degrees at that time. He stopped the mower and told his wife his chest was hurting. He then lost consciousness and collapsed. Paramedics were unable to resuscitate him and the scene and continued CPR during transport to the ED where he pronounced dead. An autopsy shows a massive MI with complete occlusion of the left anterior descending artery. He had no prior history of cardiac disease but weighted 264 lbs.
A. What stressors and other key factors may have contributed to the MI?
B. What was the most likely cause of his chest pain?
C. What was the most likely cause of the loss of consciousness and collapse?
D. Describe the cellular response to injury from the initial hypoxia to necrosis.
E. If the patient had been diagnosed with coronary artery disease, what might have been the most common factors in the development of this condition?