A 43-year-old woman presents to the GP with a three-month history of shortness of breath. Examination shows ulnar deviation of the left wrist and Boutonniere and Swan-neck deformities. Her condition is managed by a rheumatologist with ibuprofen, prednisone, methotrexate, and etanercept. Which of the following might be expected in this patient?
Decreased serum bicarbonate
Increased DLCO
Kerley B lines
Kerley B lines
Normal FEV1/FVC
Paradoxical splitting of S2
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Cut-to-the-chase Answer (0:29):
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HY USMLE Answer (4:03):
