Overall, we found that COVID-19 patients with worse outcome tend to display higher lactate values than those with better outcome, although most COVID-19 patients in the studies included in our analysis did not have sustained baseline hyperlactatemia.Dec 2, 2021 https://pubmed.ncbi.nlm.nih.gov/34856090/#:~:text=Overall%2C%20we%20found%20that%20COVID,not%20have%20sustained%20baseline%20hyperlactatemia.
