Objective To analyze the obstacles and promoting factors of NICU nurses postural management of mechanically ventilated premature infants,and to provide reference for improving the postural management quality of mechanically ventilated premature infants.Methods From March to May 2024,12 nurses in NICU of 4 Grade A hospitals in were subjected by objective sampling during the period of phenomenological study,and investigated by semi-structured in-depth interviews.Colaizzi seven-step analysis was used for sorting out the interview data and analyzing the topics.Results The promoting factors for position management of premature infants on mechanical ventilation include empirical management,sense of responsibility,empathy,professional identity and reflection and summary;the hindering factors include nurses'lack of cognition of position management,lack of knowledge of position management,existence of risks and hidden dangers,improper allocation of human resources,difficulty in transforming scientific research achievements and lack of position management plans.Conclusion NICU nurses have obstacles and promoters to posture management of premature infants with mechanical ventilation,and intervention can improve posture management quality of premature infants with mechanical ventilation.

Objective To analyze the obstacles and promoting factors of NICU nurses postural management of mechanically ventilated premature infants,and to provide reference for improving the postural management quality of mechanically ventilated premature infants.Methods From March to May 2024,12 nurses in NICU of 4 Grade A hospitals in were subjected by objective sampling during the period of phenomenological study,and investigated by semi-structured in-depth interviews.Colaizzi seven-step analysis was used for sorting out the interview data and analyzing the topics.Results The promoting factors for position management of premature infants on mechanical ventilation include empirical management,sense of responsibility,empathy,professional identity and reflection and summary;the hindering factors include nurses'lack of cognition of position management,lack of knowledge of position management,existence of risks and hidden dangers,improper allocation of human resources,difficulty in transforming scientific research achievements and lack of position management plans.Conclusion NICU nurses have obstacles and promoters to posture management of premature infants with mechanical ventilation,and intervention can improve posture management quality of premature infants with mechanical ventilation.

Objective: To study the effect of p-phenylenediamine (PPD) on liver and kidney function in occupational exposed workers. Methods: Workers in a hair dye production enterprise which used p-phenylenediamine as a raw material for production were selected as the main research population. Then we conducted a questionnaire survey on the basic conditions of workers and conducted occupational health checkups on general health status, liver and kidney function. Occupational health examination assessment results were tested in Taizhou Cancer Hospital. All data was built using EpiData 3.1 software, and statistical analysis was performed using software SPSS 20.0. Results: The liver function indicators including direct bilirubin, prealbumin, total protein, and white protein, globulin, aspartate aminotransferase, glutamyl transpeptidase, and total bilirubin in the workers exposed to high concentration of PPD were at high normal values, and these indicators were significantly different from low PPD concentration group (P<0.05) . The serum creatinine and serum uric acid in the renal function index were significantly higher in workers exposed to PPD than in workers exposed to low concentrations and in the control group (P<0.05) . Conclusion Occupational exposed to PPD may have a hazard to the workers’ liver and kidney function. Long-term occupational exposure to PPD may lead to increased cumulative exposure of workers, which may cause potential chronic liver and kidney damage in occupationally exposed populations.