Respiratory rate Oxygen saturation state and arterial oxygen partial pressure ratio Lung infiltration status LDH level's CRP level's Lymphocyte count Endogenous erythropoietin level's Patients' blood pressure

Respiratory rate Oxygen saturation state and arterial oxygen partial pressure ratio Lung infiltration status LDH level's CRP level's Lymphocyte count Endogenous erythropoietin level's Patients' blood pressure