Objective: One of the most frequently used scoring systems routinely to determine whether pneumonia patients need inpatient treatment is the CURB-65 score.Recently, studies conducted with simple, cheap, and rapid blood tests such as hemogram and biochemistry parameters, which every clinician can easily interpret, have gained popularity.This study examined the relationship between blood tests requested in the emergency department (ED) and pneumonia severity and prognosis. Methods:The study examined the files of patients who came to the ED with complaints of fever, cough, phlegm and fatigue between January 1 and December 31, 2017.Pneumonia severity according to thorax tomography and CURB-65 score at admission were evaluated.The patient's vital signs, hemogram, biochemistry and blood gas parameters were examined.It was compared with the ward they were admitted to and their 30-day prognosis. Results:The files of 117 patients were examined.The age of the patients was significantly higher in the group with severe pneumonia than mild and moderate pneumonia groups.In the group with moderate and severe pneumonia, comorbidities were significantly higher than the mild pneumonia group.The rate of intensive care admission and ex in the group with severe pneumonia was significantly higher than in mild and moderate pneumonia groups.In the ex-group, the CURB-65 score, neutrophil-lymphocyte ratio (NLR), C-Reactive Protein (CRP)/Albumin and pneumonia severity were significantly higher than the other group. Conclusion:NLR and CRP/Albumin ratios may be as effective as CURB-65 scoring in predicting 30-day mortality, and ED burden can be reduced with simple blood tests.