NPPB and Hypokalemia: The laboratory test performed on the day of admission pointed out lymphopenia (1560/mm3), thrombocytopenia (108x103/mm3), anemia (hemoglobin – Hb 10.9 g/dL), elevated C-reactive protein – CRP (162 mg/L), erythrocyte sedimentation rate (50 mm/h) and ferritin levels (389.3 ng/mL), hyponatremia (132 mmol/ L), hypopotassemia (3.94 mmol/L), hypertriglyceridemia (476.3 mg/dL), elevated D-dimer (>5 μg/ml), increased troponin (16.6 ng/L) and NT-proBNP (19,831 pg/ml).