Diagnosis of COVID-19 by RT-PCR test Respiratory rate above 30 bar per minute Percentage of peripheral blood oxygen saturation less than 90% Relative oxygen depletion ratio to arterial oxygen saturation less than 300 mm Hg Interloquin six blood levels higher Abnormally age over 18 years

Diagnosis of COVID-19 by RT-PCR test Respiratory rate above 30 bar per minute Percentage of peripheral blood oxygen saturation less than 90% Relative oxygen depletion ratio to arterial oxygen saturation less than 300 mm Hg Interloquin six blood levels higher Abnormally age over 18 years