robin082006
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A 35-year-old woman suffers severe chest trauma. She is unconscious and her blood pressure is substantially decreased. She has sustained a tear in one of the pulmonary veins at the point at which the vein enters the heart. Into which of the following spaces is the patient hemorrhaging?
A.  Between the epicardium and the parietal pericardium
B. .gif) Between the fibrous pericardium and the parietal pleura
C. Between the myocardium and the epicardium
D. Between the parietal pericardium and the fibrous pericardium
E. Between the parietal pleura and the visceral pleura
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| Doc2378
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Is it D?
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| reet
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D. 
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| cyra
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Its A.
The hemorrhage would be into the pericardial space,which is the space between the visceral and the parietal pericardium.The visceral pericardium is the "epicardium".
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| msyamp
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hey guys it is E . no other place has so much volume to decrease blood pressure so much
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| robin082006
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cyra is correct, ans is A
E is wrong as it is the hemorrage to pleural space,
D is wrong because fibrous pericardium and parietal pericardium are the same, no space between them
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| cyra
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The pulmonary vein tears close to the heart...so the space into which hemorrhage occurs has to be the pericardial space,causing cardiac tamponade.There can be a significant reduction in blood pressure due to cardiac/pericardial tamponade due to the fact that blood accumulates in the pericardial spae preventing ventricles to expand completely and so they cannot fill or pump blood.
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