Question from NBME 6

[MedStudent1008]

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45. A 35-year-old woman with primary pulmonary hypertension undergoes an uncomplicated right lung transplantation. One month later, her FEV1 is normal, and an exercise stress test shows no abnormalities. Which of the following is most likely to be increased in the transplanted lung compared with the left lung?
) Airway resistance
) Blood flow
) Cough reflex
) Lung compliance
) Mucociliary clearance
) Vascular resistance

 

[Myxedema]

Since the left lung is still there, the left pulmonary artery pressure would still be elevated. Therefore, blood will flow into the right pulmonary artery with less resistance --> Increased blood flow.

 

[MedStudent1008]

Thanks