Objective To explore the storage life and cost analysis of 0. 9% sodium chloride solution in 42℃ conveuse. Methods A total of 80 bottles of 0. 9% sodium chloride solution had been selected as research sampling, and the SAS 9. 2 were used to randomly divide them into control group (put sampling in clean laminar flow operation room at room temperature) and experimental group ( put in 42℃ conveuse) on average. Eight bottles of each group were took out for the number of colony examination after germiculture and the change of pH value ( at the beginning of 3 days, 1 week, 2 weeks, 3 weeks and 4 weeks experiment) . Basis on the previous experiment, we selected 12 operating room and randomly divided into A group and B group on average. A conveuse provided warm 0. 9% sodium chloride solution, which had three days storage life in A group, but B conveuse offered warm 0. 9% sodium chloride solution of 4 weeks storage life. Results The results of germiculture were negative in both group. The 5 time point of pH values were (6. 35 ± 0. 29), (6. 32 ± 0. 04), (6. 23 ± 0. 20), (6. 29 ± 0. 35), (6. 36 ± 0. 32) at the control group, while these of experimental group were (6.37 ±0.42), (6.31 ±0.11), (6.39 ±0.21), (6.42 ±0.45), (6.60 ±0.32)and at the same time point the pH value of two groups had no statistical significance (t=0. 110 8, 0. 241 7, 1. 561 0, 0. 645 0, 2. 111 0;P>0. 05). Compared with A group-consumed (2 761 ± 118) bottles, cost (11 042 ± 470) Yuan, B group consumed (1 466 ± 205) bottles and cost (5 862 ± 820) Yuan with statistical significance between two groups (t=13.41;P<0.01).Conclusions Thepreservationof0.9% sodiumchloridesolutionin42℃ conveusecan be maintained 4 weeks and reduced cost by the decreasing the number of usage, and the testing norm is accord with the acquirement of pharmacopeia.

Objective To explore the influence of Yoga exercise on the work stress and coping styles of operating room nurses. Methods A total of 77 nurses were selected working in the operating room of our hospital,and all the nurses were randomly divided into observation group(38 cases)and the control group (39 cases). The nurses of observation group did Yoga exercise regularly,while the nurses of control group did not make any Yoga workout regularly. We used psychological stress scale( CPSS)to assess anxiety of two groups nurses before and after the intervention,and investigated every nurse's pressure coping style respectively before and after care. Results Pressure improvement mark in the observation group had been greatly improved after Yoga exercise intervention(16. 203 ± 4. 218),while it was(3. 127 ± 1. 037)in the control group with statistical significance( t = 3. 012,P < 0. 05);the improvement of anxiety in the observation group was significantly better than that of the control groups,the difference had statistical significance(P < 0. 05);the stress coping style of observation group were obvious improved after the intervention compared with that of the control group(P < 0. 05). Conclusions Yoga exercises can improve the working stress and coping operating room nurses effectively.