AFIB: Atrial fibrillation CAD: Coronary artery disease CHF: Congestive heart failure COPD: Chronic obstructive pulmonary disease NLR: Neutrophil-to-Lymphocyte Ratio PO2 : Partial pressure of oxygen PCO2 : Partial pressure of carbon dioxide PTT: Partial-thromboplastin time PT: Prothrombin ti...