1. Patients with acute, reversible, already life-threatening organ insufficiency who may recover in the short term with close monitoring and intensive treatment in the ICU. 2. Patients with various high-risk factors that are potentially life-threatening and whose risk of death may be reduced with close monitoring and timely and effective treatment in the ICU. 3. Patients with acute exacerbation and life-threatening conditions based on chronic organ insufficiency, who may recover to their original state after close monitoring and treatment in ICU. 4. Patients with end-state chronic wasting disease, irreversible disease and those who cannot benefit from ICU monitoring and treatment are not usually admitted to the ICU. Priority access to ICU care is given to patients who meet the criteria of “1” over those who meet the criteria of “2” and “3” when ICU bed utilization is high and patient needs cannot be met at any given time. Patients who meet “1” are given priority for ICU care over those who meet “2” and “3. Whenever possible, patients should be categorized and managed using objective indicators that evaluate disease severity and prognosis. Each hospital may develop specific implementation rules based on the above requirements, taking into account its ICU resources.