Answer the questions Atrial Septal DefectA 75-year-old female who presented with dyspnea, orthopnea, lower extremitiesswelling and palpitations is reported here. She had a 3 years history of atrialfibrillation and one-year history of cardiac failure NYHA (New York HeartAssociation) class II.Transthoracic echocardiography revealed a dilated right atrium and dilated leftatrium as well as Atrial septal defect type, with left-to-right shunt.1. How common is Atrial Septal Defect? Where is located? RatioFemale/Male?2. Why her condition is not diagnosed previously?3. People with such a defect typically have more than a normal amount ofblood in the right atrium. Why does blood flow from left to right across theseptum rather than in the opposite direction?4. The excess of blood can cause hypertension in one circuit. Which one?

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An Illustrated Guide To Vet Med Term

4th Edition

ISBN:9781305465763

Author:ROMICH

Publisher:ROMICH

Chapter8: Have A Heart

Section: Chapter Questions

Problem 1M

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