MAKE THE CONNECTION 1. It is the spring of2016 and you are a runner from Houston
ID: 165025 • Letter: M
Question
MAKE THE CONNECTION 1. It is the spring of2016 and you are a runner from Houston, Texas (near sea level) who has come to Mexico City, Mexico (altitude: 7349 feet above sea level) to train for the Olympics. Initially, how will the high altitude affect your performance? Describe the physiologic changes that will help your body compensate 2. In individuals with hypertension, a common symptom is edema, particularly in the lower extremities. Individuals with kwashiorkor, a condition caused by protein malnutrition, often present with a swollen abdomen (edema). What is edema? Explain why edema is a symptom for both hypertension and kwashiorkor. 3. A 65-year-old male patient presents with shortness of breath. He hasjust returned from a vacation in Australia. He reports that he felt fine while he was on vacation, no trouble with breathing. However, he reports that he developed pain in the left leg the day after he arrived home. The leg pain is gone and now the shortness of breath is his chief complaint. His breathing is rapid (tachypnea). His doctor admits him to the hospital and orders a pulmonary arteriography. a. What does the doctor suspect is the diagnosis? b. Why is the fact that he just returned from a trip to Australia helpful? c. What was the probable cause of the leg pain? d. How could this problem be avoided?Explanation / Answer
1Ans:
Initially exposing the body to high altitude causes it to acclimatise to the lower level of oxygen available in the atmosphere.
Physiological adaptation of the cardiovascular system to high altitude. the initial cardiovascular response to altitude is charecterised by an increase in cardiac output with tachycardia, no change in stroke volume, where as blood pressure temporarily be slightly increased
2 Ans:
Edema is swelling caused by excess fluid trapped in our body tissues.
Hypertension becomes heart failure. it is unable to accommodate this extra fluid, so it is transferred of our blood vessels and into tissues
3 Ans:
a).The doctor suspect the diagnosis is pulmonary arteriography
b). He felt fine while he was on vacation, no trouble with breathing, however he reports that he developed pain in the left leg the day after he arrived home.
c) leg pain is common cause, he is 65-year old, in his blood circulation problem in legs, when he travelled.
d) Use computed pulmonary angiography for this problem be avoided.
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