Clinical and Laboratory Findings in Patients with Acute Respiratory Symptoms that Suggest the Necessity of Chest X-ray for Community-Acquired Pneumonia

نویسندگان
doi
10.5812/iranjradiol.13547
چکیده

Background: Pneumonia is a common illness in all parts of the world and is considered as a major cause of death among all age groups. Nevertheless, only about 5% of patients referring to their primary care physicians with acute respiratory symptoms will develop pneumonia. Objectives: This study was performed to derive practical criteria for performing chest radiographs for the evaluation of community-acquired pneumonia (CAP). Results: The data showed that vital signs and physical examination findings are useful screening parameters for predicting chest radiograph findings in outpatient settings. Therefore, by implementing a prediction rule, we would be able to determine which patients would benefit from a chest X-Ray (sensitivity, 94% and specificity, 57%). Conclusion: This study's findings suggest that requesting chest radiographs might not be necessary in patients with acute respiratory symptoms unless the vital signs and/or physical examination findings are abnormal. Considering the 94% sensitivity of this rule for predicting CAP, a chest radiograph is required for patients with unreliable follow-ups or moderate to high likelihood of morbidity if CAP is not initially detected.