The doctor also told Carol that there was a small amount of old damage to the le

Question

The doctor also told Carol that there was a small amount of old damage to the left side of Joe’s heart and that he was starting to develop congestive heart disease. “Has he been coughing and short of breath lately?” asked the doctor? “He has been”, said Carol. “I thought he was fighting off a cold.”

10. In Joe’s case, a portion of the left ventricle is no longer contributing to the force of contraction of the heart because some of those pumping cells died. As a result of this:

a) What happens to the stroke volume of the left ventricle? ________________

b) How is the cardiac output from left side of heart affected?________________

c) How is the MAP in the systemic circulation affected? __________

d) What happens to the pressure in the pulmonary circulation? ___________

10. What is congestive heart failure?

Explanation / Answer

1. a) Stroke volume Decreases

b). Cardiac output decreases

C). Mean Arterial presaure decreases

D). Increases

10. CHF is condition in which heart is unable to pump all the blood that it receive this results in decreased tissue perfusion. As LV faliure occurs then there in decreased tissue perfusion. LVF causes pulmonary congestion which over time can cause Right heart faliure. RHF causes edema in systemic circulation (dependent pulmonary edema).

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