11 Jun BIOLOGY 11 – A 50-year-old man is experiencing fatigue
Question
A 50-year-old man is experiencing fatigue, shortness of breath, swollen ankles, and cyanosis (“turning blue”) of toes.
1. A chest X-ray shows that he has pulmonary edema (fluid and blood accumulating in the lungs). Which part of his heart may be wrong that lead to the pulmonary edema? Explain clearly.
2. What is the reason for the fatigue, shortness of breath, and blue toes?
3. If he has a heart problem, why would his ankles be swollen? Think about what is happening at the kidneys.
4. One of the common causes for what this man is experiencing is atherosclerosis of the coronary arteries. Without intervention, he is at increased risk of getting a heart attack. Explain what are plaques, atherosclerosis, coronary arteries, and heart attack.
5. List at least three changes this man can make to reduce the chance of him suffering from a heart attack.
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