Question

Case Study: A 55-year old female patient complains with weakness, fatigue, shortness of breath, chest pain, and dizziness. Here is what was report it on her chart: heart rate of 96b/min, BP = 148/54 mm Hg, her radial pulse is very strong and abrupt; her heart sounds abnormal with a long diastolic murmur at R sternal margin in the second intercostal space. ECG (aka EKG) shows severe aortic regurgitation am an enlarged left ventricle.
Questions:
1. Why does an incompetent aortic valve causa a diastolic murmur? Explain.
2. Why the patient is systolic, blood pressure is abnormally high and her diastolic pressure is abnormally low?
3. The additional muscle of the patient has enlarged L ventricle means that it requires more oxygen. Which arteries are most important for supplying this ventricle?
4. Although she has a high systolic BP, her heart rate is also high. This is most likely due to what? Explain.

Answer 1

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