Mr. G is a 60-year-old man with a cane. He seems to be having trouble breathing.
ID: 207682 • Letter: M
Question
Mr. G is a 60-year-old man with a cane. He seems to be having trouble breathing. You listen to his chest and hear fluid in his lungs. You hear a systolic murmur when you listen to his heart. His systolic blood pressure is low compared to the last time he came in, and his heart rate is elevated. His chart says he has bicuspid regurgitation, a valve that doesn't close properly allowing for backflow of blood, and left-sided heart failure. 1. (Ipts). Explain why somebody with a bicuspid regurgitation might have a low systolic blood pressure. Mr. G talks in short bursts with frequent breaths. He tells you he used to feel breathless when he was walking, but now he has been having more and more trouble breathing even when he is lying down at night. When you listened to his lungs you heard fluid in them. il they overcome the semilunar valves. In the case of Mr. G, what is happening to some of the blood during isovolumetric contractions? 3. (1pt). How does this change the ejection fraction? 4. (1pt). Based on your answer to question 3, how would this effect SBP? (2pts). Based on your answ S.Explanation / Answer
Mitral or Bicuspid regurgitation - its a condition of leakage in Mitral valve.
A leakage in Mitral valve allows blood to flow in back directions means into left atrium as left ventricle contract. This causes the left atrium to be become engorged with blood because blood is entering the left atrium from the left ventricle during ventricular systole as well as from the pulmonary veins. This results in holosystolic murmur and low systolic pressure.
2. In the case of Mr G., during of isovolumetric contractions Mitral valve can not be closed and blood to flow back towards the left atrium continously.
3. Ejection fraction of left ventricle is decreased in mitral regurgitation.
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