Cardiovascular case histories

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Reference no: EM133866485

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Cardiovascular Case Histories A 32-year-old female nurse who had rheumatic fever as a child noticed a persistent tachycardia and light-headedness. Upon examination, chest x-rays showed an enlarged left atrium and left ventricle. ECG analysis showed atrial fibrillation. There was also mild pulmonary edema. Cardiac evaluation resulted in the following information: Cardiac output (CO) 3.4 L/min Blood pressure (BP) 90/58 mm Hg Left atrial pressure (LAP) 16 mm Hg (normal 8-10) Right ventricular pressure (RVP) 44/8 mm Hg (normal 25/4) Heart Rate (HR) = 120 bpm Heart sounds revealed valvular regurgitation.

1. Based on the information provided, which A-V valve is incompetent, allowing the regurgitation? How did you determine this?

2. If the other A-V valve were incompetent instead of this one, would the CO (L ventricle), and BP be different? If so, how? Would you expect the LAP to be normal?

3. Pulmonary hypertension can develop with L sided heart disease. What is pulmonary hypertension in this context? Why does it cause elevated RVP?

4. Other than atrial fibrillation, what are the causes of the tachycardia, light-headedness, and mild pulmonary congestion in this patient?

5. Does the cardiac output concern you? Why or why not? 6. Name a danger/risk associated

Reference no: EM133866485

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