Figure 1. Changes in functional coagulation laboratory markers in ICU patients with critical type COVID-19. Percentage of patients with abnormalities in various coagulation markers. ICU: intensive care unit; COVID-19: coronavirus disease 2019. FDP: fibrinogen degradation products; Fbg: fibrinogen; PT: prothrombin time; PTA: PT activity; TT: thromboplastin time; APTT: activated partial TT; AT-III: antithrombin III.