Restrictive Lung Disease USMLE Step 1 Practice Question
A 28-year-old woman presents with progressive dyspnea, erythema nodosum, and arthralgia. Vital signs show BP 118/76, HR 92, RR 20, SpO2 92% on room air. Chest X-ray demonstrates bilateral hilar lymphadenopathy without parenchymal infiltrates. Laboratory studies reveal elevated serum ACE level at 68 U/L and normal serum calcium of 9.2 mg/dL. High-resolution CT confirms no upper lobe involvement. Which radiographic stage of sarcoidosis is most consistent with these findings?
Answer choices
- AStage V
- BStage III
- CStage ICorrect answer
- DStage II
- EStage IV
- FStage 0
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