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Background: Since December 2019, a series of pneumonia cases caused by COVID-19 emerged in Wuhan, Hubei Province, China. People are generally susceptible to COVID-19 because people lack immunity to this new virus. With the spread of this epidemic disease from Wuhan, a national outbreak soon appeared, and now many countries have this disease. Unfortunately, no effective drug for COVID-19 treatment has been found so far.
Methods: We designed a retrospective study based on patients admitted to The Affiliated Infectious Hospital of Soochow University from January 22, 2020, to February 25, 2020, with diagnosed COVID-19. We analyzed correlations between RT-PCR negative time and laboratory indicators, then divided all cases into 2 groups according to oxygenation index, data of RT-PCR negative time and related laboratory indicators of the two groups were com-pared.
Results: We collected 84 confirmed patients whose RT-PCR had turned negative, including 23 patients with the lowest oxygenation index ≤ 300 mmHg and 61 patients had > 300 mmHg. There was a positive correlation between the RT-PCR negative time and age, WBC count, LDH, SCr. There were statistically significant differences in fever numbers, WBC count, lymphocyte count, CRP, ALT, AST, albumin, LDH, SCr, D-dimer, and fibrinogen between the two groups based on the oxygenation index.
Conclusions: Age, WBC count, LDH, and SCr may be related to the duration of COVID-19 disease. Fever, WBC count, lymphocyte count, CRP, ALT, AST, albumin, LDH, SCr, D-dimer, and fibrinogen are related to the severity of acute lung injury.
DOI: 10.7754/Clin.Lab.2020.200606
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