Investigation of HCO3–/CO2 as an evaluation method for respiratory system functions in patients recovered from COVID-19

The outbreak of the novel coronavirus disease (COVID-19), caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), is seeing a rapid increase in the number of infected patients worldwide. The aim of this study was to assess lung function by calculating HCO-3 ions, which reflect the shares of carbon dioxide in the body in people who have recovered from COVID-19 and comparing this share to healthy people. The difference between the shares of infected and healthy subjects can be used to assess respiratory function. The study took 130 patients with respiratory problems confirmed with Covid-19 by PCR and/or positive serology (Igg or Igm) compared to another 70 non-Covid-19 patients with PCR and/or serology in Baquba Teaching Hospital in Diyala Governorate, Republic of Iraq. Age had a clear importance, as the study proved that the older the age, the higher the infection rate, and the higher the death rate from COVID-19. There were no differences between the study groups regarding weight and body mass index. Where these results indicate that weight is not a factor for increasing the infection of COVID-19. The results of HCO-3 indicated a clear importance and changes towards the increase in relation to the second group, and this indicates that the percentage of infection with HCO-3 increases at the onset of infection with Covid_19. With regard to CO2 levels changed in both groups, which indicates that the effect remains continuous and the percentage of CO2 increases and the lack of oxygen leads to death. Sodium results indicate its decrease at the beginning and during infection with COVID-19. The concentrations of IL-6 and hsC-RP changed clearly and significantly, which indicates an increase in immunological changes when infected with COVID-19. These tests are considered diagnostic tests for COVID-19. D-Dimer concentrations changed dramatically towards an increase, and this increases the blood clotting rate and thus increases the death rates of COVID-19. These tests are considered diagnostic tests for COVID-19. The study found that the levels of white blood cells were affected at the onset of infection with COVID-19.