Question of the Week #34 Welcome to your Question of the Week #34 A 16-year-old male presents with decreasing exercise tolerance over 2 years. He is noted to have a significantly concave chest with a Haller index of 4. His decrease in exercise tolerance is most likely due to: A. Decreased Vital Capacity B. Right Ventricular Compression C. Pleural Effusion D. Decreased FEV1% Time's up Click here to find out how to get involved! Click here to give feedback!