A 50-year-old woman has had increasing dyspnea for the past 2 days. She was admitted but expiresseveral hours later. Gross finding of the heart shows pallor of the myocardium and 80% occlusionof the left anterior descending artery.Questions:a. What is your diagnosis and explain its pathophysiology?b. Identify the microscopic changesWhat are the different cardiac markers useful for the diagnosis? Explain the significance of eachcardiac maker.

A 45-year-old woman presented with exertional dyspnea. Fourteen years earlier the patient was diagnosed with arterial hypertension with a blood pressure of 170/105 mm Hg. Her blood pressure at presentation was 155/95 mm Hg. Physical examination was remarkable for lower-extremity edema, and abdominal enlargement due to ascites. Transthoracic echocardiogram showed left ventricular ejection fraction of 28% (reference range: 50-57%). Which of the following is the patterns of cardiac failure seen in this patient?

A 50-year-old man experiences sudden severe chest pain that radiates to his back. On physicalexamination his blood pressure is 180/110 mm Hg. Heart sounds are distant and Pulsus paradoxusis observed. A pericardiocentesis is performed and yields blood.a. What syndrome is most likely associated with this patient? Discuss your answerb. What are the pathologic findings that occurred in his aorta? Discuss the two systems toanatomically classify the injury

What is the probable explanation for her cardiac findings?

Astronaut on the International Space Station (ISS) follow strict training and exercise regimes. Despite these training regimes, there is still noticeable change in the heart with a reduction in Heart Mass, including left ventricular mass, and enlarged left atrium. Which of the following are plausible contributing factors, and/or explanation for the observed changes in cardiac morphology?(select all that are correct, even if it is only one answer)Each correct answer will score partial points, each incorrect answer will score an equivalent deductionGroup of answer choicesThe lack of gravity directly affects cardiac myocytes resulting in atrophyThe lack of exercise results in less cardiac work loadThe observed reduction in systemic vascular resistance = lower afterloadThe lack of gravitational effect results in a lower afterload on the heart

A patient is found to have reduced blood flow through pulmonary vessels and excess fluid accumulation in the abdomen and legs.  Which of the following conditions would best explain this patient's symptoms?A.Reduced blood flow through the heart valve separating the right atrium and right ventricleB.Vasodilation of arteries supplying blood to abdominal organsC.Increased volume of blood pumped from the right ventricleD.Backflow of blood through damaged valves in systemic arteries