Evaluation indicators and standards
The following indicators were observed on 1th, 3th, 5th and 7thday after the application of the airway humidification method: 1. Phlegm viscosity (Ⅰ-Ⅲ): I degree:(thin phlegm) dilution such as rice soup or white foam sample, can cough up easily, after sucking sputum, there is no sputum retention on the tubing; Ⅱ degree: Moderately sticky phlegm, need to be hard to cough up, after sucking phlegm, there is a small amount of sputum on the tubing; Ⅲ degree: Moderately viscous, viscous appearance, often yellow, not easy to cough out, phlegm suction tube collapse due to heavy negative pressure, there is a large amount of sputum on the tubing wall and not easy to be cleaned with water. 2. Formation of phlegm scab: to observe whether the patient cough or phlegm scab when cough or suction, or the patients manifested as a rapid breathing, blood oxygen saturation or restlessness. 3. Airway spasm: sudden cough, choking, breathing difficulties, cyanosis. 4. Humidification effect: insufficient humidification: mucous liquid, less quantity, not easy to absorb, lungs breathing sound thick or dry; Good humidification: thin sputum, moderate amount, easy to absorb, clear lung breathing sound; Excessive humidification: the sputum is foamy, abundant, inexhaustible, the lungs have a large number of or rapid increased rough sounds. 5. Daily average sputum intake times. 7, Degree of secondary lung infection: three chief physicians were invited to judge the degree of lung infection according to computed tomography (CT) image and gave scores, infection degrees were divided into 1-9 points, and average score as the final score. 1-3 points set as level I, 4-6 is level Ⅱand 7-9 is defined as level Ⅲ. 8. Average nursing times: used to evaluate the number of times a nurse handles each patient each day, including daily basic care and inter-group difference of care. 9. Internal satisfaction: Evaluation of personnel satisfaction of nursing during the study.