Imaging and Laboratory Examination of Patients with COVID-19

Objective:To analyze the imaging and laboratory detection indexes of patients with COVID-19. Methods:The laboratory test indexes and imaging results of 105 patients with COVID-19 admitted to our hospital from January 22 to February 17, 2020 were retrospectively analyzed, the abnormal changes of blood routine test indexes and blood gas analysis indexes were analyzed, and the chest CT images were analyzed. Results:of the 105 patients, Most patients infected with COVID-19 presented with increase of erythrocyte sedimentation rate(ESR), amyloid A(SS A), C-reactive protein(CRP), lactate dehydrogenase(LDH) and D-dimer level. A few of patients with increase of prothrombin time and procalcitonin level. besides, very few patients showed abnormal increase or decrease of neutrophils, leukocytes and lymphocytes. Moreover, most of patients showed of oxygen partial pressure(PO₂) level decrease, but the PO₂ level increased. The PCO₂ increased in some patients but with normal total PCO₂ level. PH level in all patients were normal. Before treatment, the main manifestation of chest CT were lamellar ground glass opacity, lamellar exudate solid shadow and mainly located in the double lung subpleural. After treatment, the solid shadow decreased obviously, but mesh opacity and linear opacities increased. The ground glass opacity still exit in all patients after treatment. Conclusion:the blood routine and blood gas analysis indexes of COVID-19 patients would be abnormal, and the CT scan could better reflect the dynamic changes of the lung lesion. The dynamic monitoring of laboratory and CT scan could help to guide the clinical diagnosis and treatment.