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A 65-year-old man is evaluated for abdominal pain radiating through to the back, jaundice, anorexia, and recent weight loss. An additional likely finding is
(A) history ofthorium dioxide (Thorotrast) exposure.
(B) increased AFP.
© migratory venous thrombosis.
(D) pancreatic calcification and pseudocyst formation.
(E) urine test negative for bilirubin.
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22 Year old woman comes to the physician because of a 3 day history of persistent numbness in her right cheek and right hand. One month earlier, she had an episode of blurred vision when reading the newspaper; her vision was less blurry if she closed one eye. However, her vision improved over the next few days, although she had a few flashes of light when she moved her eyes. Today, PE shows normal vision. MRI of brain shows two hyper intensities in the subcortical white matter of the frontal lobe. After additional tests, the p begins pharmacotherapy designed to modulate the activity of her immune system. This its condition is most likely caused by an inappropriate immune response directed agains which of the following elements of the nervous system?
a)acetylcholine receptors
b) astrocytes
c)microglial cells
d) oligodendrocytes
e) schwann cells
f)synaptic cleft proteins
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21-year-old woman has a mechanical aortic valve implanted after resolution of severe Subacute bacterial endocarditis. She begins systemic anticoagulation with warfarin. Warfarin prevents cerebrovascular embolism by inhibition of which of the following?
a) Carboxylation of coagulation factors
b) Fibrin-induced aggregation of platelets
c) Plasmin binding to fibrin
d) Proteolysis of coagulation factors
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65-year-old man comes because for the past 3 months he has been waking up with shortness of breath after 3-4 hours of sleep. When he gets out of bed, his breathing gradually improves. His pulse is 96 respirations are 24 and blood pressure is 110/76. Auscultation of the lungs shows inspiratory crackles at the bases bilaterally which of the following is the most likely diagnosis?
a) Asthma
b) Heart failure
c) Pneumonia
d) Pulmonary embolism
e) Spontaneous Pneumothorax
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57-year-old man ER after he was found unconscious at home. He has a 10-year history of heart disease. Pulse is 110 and peripheral vascular resistance is markedly decreased. Fluid replacement and antibiotics are started. Which of the following drugs is most appropriate to increase blood pressure and peripheral vascular resistance in this patient?
a) Captopril
b) Isoproterenol
c) Nitroprusside
d) Norepinephrine
e) Terbutaline
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A, B and D for the last 3 questions
