Clinical care for critically ill patients is as follows: 1) pay attention to the vital signs of patients, such as monitoring their heartbeat, respiration, blood pressure, pulse and body temperature; 2) keep the patient’s respiratory tract open, and if the patient has obvious oropharyngeal secretions, timely wiping should be given to avoid choking, or aspiration and other adverse consequences; 3) pay attention to the care of the patient’s eyes and mouth, such as For patients whose eyelids cannot close on their own, eye ointment can be applied or covered with oily gauze; for oral care, patients can be given gargles or chlorhexidine and other related antibacterial and anti-inflammatory drugs. 4, in the process of skin care, attention should be paid to the stimulation of the skin by the patient’s second stool, timely diaper changes, and the relevant changes in the patient’s intake and output should be monitored. For patients who are not able to move on their own, they should be given position changes and limb movements to avoid muscle atrophy or deep vein thrombosis.