Table 9 Disease severity classification criteria of COVID-19 pneumonia
From: Association between acute stroke and COVID-19 infection among patients with acute stroke
Mild | The clinical symptoms were mild and no signs of pneumonia were found in lung imaging |
Moderate | The patient had symptoms of fever and respiratory infection, and the lung imaging showed pneumonia |
Severe | Adults meet any of the following criteria: 1. Shortness of breath, RR 30 times/min; 2. In resting state, oxygen saturation 93%; 3. PaO2/FiO2 300 mmHg (lmmHg O.133 kPa) PaO2/FiO2 should be corrected according to the following formula: PaO2/FiO2 (atmospheric pressure |