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                                             MCQs for Cardiothoracic Surgery

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Please send your MCQs to: admin@cardiothoracicsurgeryservices.com

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Examples:

1. Bileaflet mechanical valves:

A. are made of pyrolytic carbon disks
B. the open valve consists of three orifices
C. Require life long Warfarin treatment 
D. In the mitral position, bileaflet valves are implanted in an orientation perpendicular to the normal plane of the mitral valve
E. all are correct

Answer: E
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2. Which of the following about ball-cage valves is correct?

A. the only one in clinical use is the Starr-Edwards 1260
B. antegrade blood flows around the silastic ball
C. ball-cage valves are associated with significant turbulent and shear stresses
D. the hemodynamic performance of the ball-cage valves are excellent

Answer: A, B & C.
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3. Which of the following histologies or conditions can result in a false-negative PET scan in a patient with a solitary pulmonary nodule?

A. Carcinoid tumor
B. Uncontrolled diabetes
C. Well differentiated adenocarcinoma of the lung
D. All of the above
E. A and C only

Answer: E

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4. All of the following are titlting-disc valves except:

A. Medtronic-Hall
B. Bjork-Shiley
C. Omniscience
D. St. Jude Medical

Answer: D.
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