Objective Investigate the effects of early application of noninvasive respiratory support on very low birth weight infant(VLBWI). Method A total of 65 VLBWI(born during September 2015 to September 2016 with 28-32 weeks gestational age;1000 g ≤ birth weight < 1500 g;exclusion of combination with congenital deformity)were randomly divided into the early application of noninvasive respiratory support as observation group (n = 33) and the application of endotracheal intubation with gen respiratory support as control group (n = 32). Comparison of two groups was carried out by SPSS in terms of incidence of endotracheal intubation,BPD,pulmonary infection,pneumothorax,and necrotizing enterocolitis,together with rescue ratio,total oxygenation time and hospitalization. Results No significant difference was found on incidence of pneumothorax,necrotizing enterocolitis and rescue ratio between two groups. The incidence of endotracheal intubation,BPD,pulmonary infection and total oxygenation time was markly decreased in observation group. Conclusion Early application of noninvasive respiratory support benefits VLBWI via reducing incidence of endotracheal intubation,BPD,pulmonary infection, total oxygenation time.

Objective To explore the effects of two types of shift patterns of small cycle monthly night shift and con-ventional shift pattern on nurses' mental and physical health. Methods Conventional shift patterns in the department of oncology, the department of orthopedics and the department of ophthalmology in our hospital from June to November 2012 were selected as control group, and the reformed small cycle monthly night shift in the same three departments from June to November 2013 were selected as experimental group. Self control was applied. Self-designed questionnaire by psychological consultants in our hospital was applied, and 67 nurses in the three departments completed the ques-tionnaire from June to November 2012 and June to November 2013 in terms of psychological conditions such as sleepi-ness, fatigue, emotion and energy; four hormones of cortisol, TSH, triiodothyronine and thyroxine were tested for nurses of night shift from the two types of shift patterns by blood sample drawing. Results The investigation showed that nor-mal rates of general health, life satisfaction rate, social support, anxiety, depression and sleeping quality for nurses un-der small cycle monthly night shift were significantly higher than those under the conventional shift pattern; under the two types of shift patterns, levels of cortisol, TSH, triiodothyronine and thyroxine were within the normal range for nurs-es of night shift, but the fluctuations of levels of the four types of hormones for night shift nurses under small cycle monthly night shift were less than those under the conventional shift pattern. Conclusion Small cycle monthly night shift is beneficial for the adjustment of “circadian rhythm” for nurses and improving their life quality; it also reduces the difficulty of insufficient night shift nurses, arranges the resources properly and improves the efficiency and quality of nursing;it also corresponds to the need of nursing pattern reform.

【Objective】 To evaluate and analyze the impact of COVID-19 epidemic on inventory of red blood cells (RBCs)in local and municipal blood stations in China, and to provide reference for the management of public health emergencies. 【Methods】 Relevant data from 2018 to 2021 were collected, and the differences in the volume of qualified RBCs, the usage efficiency of inventory RBCs, the average daily distribution of RBCs,the blood distribution rate of RBCs prepared by 400 mL whole blood, the difference in the average storage days of RBCs at the time of distribution, the average daily inventory of RBCs and the time of the average daily inventory of RBCs to maintain the distribution in 24 local and municipal blood stations in China during the COVID-19 epidemic and non-epidemic periods were retrospectively analyzed. 【Results】 Compared with non-epidemic periods, the volume of qualified RBCs [(117 525.979 ±52 203.175)U] and the average daily distribution of RBCs [( 156. 468 ± 70. 186) U ] increased significantly, but the usage efficiency of inventory RBCs decreased(97.24%±0.51%) significantly (P<0.05).There was no significant difference in the blood distribution rate of RBCs prepared by 400 mL whole blood(73.88%±20.30%), the average storage days of RBCs distribution(13.040 ±3.486), the average daily stock quantity of RBCs[(2 280.542 ±1 446.538) U ] and the time of the average daily inventory of RBCs to maintain the distribution[(15.062 ±7.453) d] (P>0.5). 【Conclusion】 During the COVID-19 epidemic, the inventory management of RBCs operated well, the overall inventory remained relatively stable, the stock composition and storage period showed no significant change.