Objective To improve the ventilation mode for respiratory failure based on the self-made respirator. Methods For the conscious COPD patients with type II respiratory failure, nasal mask and NEEP ventilation mode were used. Patients breathe in air through the mouth and breathe out through the noses. There is no need of manual control tube to control the negative pressure in the nasal mask. For the non-typical type I respiratory failure, exhaled gas comes out from the one-way channel in the front of the mask, while oxygen for the next breathes is brought into the ball through the tube under it. Results The COPD patients breathe more freely and smoothly without disturb of the manual control tube. On the non-typical type I respiratory failure, FiO2 is much higher and without breath in CO2. Conclusion The new ventilation mode can provide a great range of FiO2 and get ride of redundant CO2. It's beneficial to the recovery of patients.

Objective:To explore the current status and influencing factors of venous thromboembolism (VTE) knowledge among nurses of hospitals in Tibet, so as to provide guidance for VTE nursing in Tibet.Methods:From November to December 2019, convenience sampling was used to conduct a VTE knowledge survey of 1 117 nurses in 59 hospitals from 7 cities (regions) of the Tibet Autonomous Region using the VTE Knowledge Questionnaire for Clinical Nurses. Binary Logistic regression analysis was used to explore the influencing factors of VTE knowledge scores among nurses.Results:Among nurses of the Tibet Autonomous Region, the total VTE knowledge score was (36.70±15.17) , of which the basic knowledge dimension score was (7.13±2.99) , and the risk assessment dimension score was (14.75±7.61) , and the basic prevention dimension score was (3.92±1.99) , and the physical prevention dimension score was (4.73±2.62) points, and the drug prevention dimension score was (1.96±1.29) , and the VTE post-processing dimension score was (4.22±2.35) . The average score rate of VTE knowledge among nurses in Tibet was 48.94%, and the knowledge of nurses was at an intermediate to low level. In the use of preventive measures, nurses had insufficient knowledge, including physical prevention score rate of 36.38%, drug prevention score rate 39.20%. Logistic regression analysis showed that professional title, hospital level, and whether or not they had participated in training were independent factors influencing the qualification of nurses' VTE knowledge score ( P<0.05) . Conclusions:The nurses in Tibet have insufficient knowledge of VTE. Managers need to carry out targeted training for nurses with different characteristics and the deficiencies of knowledge, to promote nurses to apply what they have learned to clinical practice effectively, and to ensure the quality of VTE care.

In this study, a new medical microbiology experiment teaching system, which was based on outcome-based education combined with inquiry-based teaching model, was developed and evaluated. According to the professional requirements of doctors, the objectives of emotion and comprehensive experimental ability were added, and the requirement for experimental operation skills was raised. In accordance with the concept of inquiry-based teaching, experimental contents were reorganized, and practical operation contents and comprehensive analytical experiments were increased to facilitate students' abilities of independent thinking and innovation. In addition, the proportion of microbiology laboratory examination was increased, experimental skill examination was focused, the assessment method was reformed, and extracurricular interest groups were established to deepen the learning. The teaching effect was evaluated by questionnaire, performance and follow-up survey. The result showed that the new model increased the students' course scores, improved their capability in innovation, academic writing and clinical working, and strengthened the weakness of traditional teaching in application and exploration, providing a new idea for the reform in medical microbiology experiment teaching.