F2 and chronic obstructive pulmonary disease: Chronic obstructive pulmonary disease (COPD); hypertension (HTN); diabetes mellitus (DM); shortness of breath (SOB); temperature (Temp); hemoglobin (Hb); alanine transaminase (ALT); total bilirubin (T. Billi); alkaline phosphatase (ALP); blood urea nitrogen (BUN); sodium blood test (Na); potassium test (K); random blood sugar (RBS); hemoglobin A1c (HbA1c); erythrocyte sedimentation rate (ESR); C-reactive protein (CRP); lactate dehydrogenase (LDH); prothrombin time (PT); activated partial thromboplastin time (APTT); international normalized ratio (INR).