Dynamic air quality monitoring in the clean Intensive Care Unite
10.3760/cma.j.issn.1674-2907.2012.09.016
- VernacularTitle:洁净ICU动态空气质量监测与分析
- Author:
Gai-Zhen ZUO
1
;
Shao-Qing XIE
;
HENG-Mei FAN
;
Liang ZHANG
;
Heng-Min JIA
;
Xue-Fei MEI
;
Li-Li ZHANG
;
Li-Hong WANG
Author Information
1. 安徽省立医院
- Keywords:
Clean ICU;
Dynamic air quality;
Planktonic bacteria;
Depositing bacteria;
Dust particles counts
- From:
Chinese Journal of Modern Nursing
2012;18(9):1038-1041
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the dynamic air quality of clean ICU so as to provide evidence for hospital infection management in clean ICU.Methods Flat natural sedimentation method,six percussive determination of planktonic bacteria and dust particle counting method were used to get samples at three different time periods,different regions for four consecutive days in 100 000 air clean ICU.Results The counts of 0.5μm,5 μm dust particles at different time ( morning,afternoon,evening) were significantly different( F =78.85,89.94 ;P ＜ 0.01 ) and the monitor results of different regions( single rooms,double rooms,hall) were significantly different( F =20.21,16.17; P ＜ 0.01 ).The number of planktonic bacteria at different time (morning,afternoon,evening) were significant different(F =14.21,P ＜0.01 ),while there was no difference in different regions ( single rooms,double rooms,hall) ( F =0.98,P ＞ 0.05 ).There was significant difference of depositing bacterial counts at different time and regions( F =5.68,17.05,P ＜ 0.01 ) and there was a positively correlation between planktonic bacterial counts and depositing bacterial counts ( r =0.612,P ＜ 0.05 ).Each level of bacterial average counts of six percussive samplers measured was significantly different (F =8.35,P ＜ 0.01 ),with fifth grade most and fourth grade following.Conclusions Air quality of ICU is not good especially when making ward round; Less than 5 μm particles dominant; the counts of planktonic bacteria and depositing bacteria is increasing when dust particles counts increase,and the air quality of single rooms and double rooms is better than that of the hall.
