A 50yo chronic smoker came to OPD with complaint of chronic productive cough, SOB and
wheeze. Labs: CBC=increase in PCV. CXR >6ribs seen above the diaphragm in midclavicular line.
ABG=pO2 decreased. What is the most likely dx?
a. Interstitial lung disease
b. Wegener’s granulomatosis
c. Ca bronchi
d. COPD
e. Amyloidosis
answer: COPD........ symptoms + >pcv=polycthemia a complication of copd due to hypoxemia
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