Diagnostic Application of AI-ROSE in Severe Pneumonia

Inclusion Criteria

• •Age 18 years and above
• •The preliminary clinical diagnosis is a patient with lower respiratory tract infection
• •Meets the criteria for severe pneumonia, which means one of the following conditions exists: ① Main criteria: septic shock requiring vasoactive drug support; Respiratory failure requiring mechanical ventilation; ② Secondary criteria: Meet at least 3 or more criteria, including respiratory rate\>30 times/minute; Oxygenation index (PaO ₂/FiO ₂)\<250; Multiple leaf segment infiltration; Consciousness disorders/orientation disorders; Urea nitrogen level\>20mg/dL; White blood cell count\<4 \* 10 \^ 9/L; platelet count\<100 \* 10 \^ 9/L; core body temperature\<36.8 ° C; hypotension requiring active fluid resuscitation
• •The patient agrees to undergo bronchoscopy and bronchoalveolar lavage, and agrees to perform AI-ROSE testing on the bronchoalveolar lavage fluid