what to do
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37. A 56-year-old man has had fever and pleuritic chest pain for 1 day. He was admitted to the hospital 3 weeks ago because of an acute transmural anterior myocardial infarction. He has taken a β-adrenergic blocking agent and aspirin since being discharged. A friction rub is heard over his precordium. Which of the following is the most likely cause of the current findings?
A ) Adverse drug effect
B ) Aortic dissection
C ) Autoimmune reaction
D ) Postviral inflammation
E ) Recurrent ischemia
40. Several clinical trials have suggested that retinoic acid can induce remission in patients with acute promyelocytic leukemia. Such remission is related to the ability of retinoic acid to promote which of the following?
A ) Differentiation of leukemic cells
B ) Differentiation of monocytes into macrophages
C ) Generation of cytotoxic T lymphocytes
D ) Production of interferon
E ) Repair of DNA damage
49. A 32-year-old man has a family history of bleeding. Partial thromboplastin and bleeding times are prolonged, aggregation of platelets with ristocetin is absent, and factor VIII (antihemophilic factor) concentration is decreased. The most likely diagnosis is
A ) deficiency of antithrombin III
B ) disseminated intravascular coagulation
C ) hemophilia A
D ) hepatic failure
E ) von Willebrand's disease
hi, anything would be nice 
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saif
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| bangledoc
Forum Senior
Topics: 10
Posts: 133
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37)C
40)A
49)E
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