ABSTRACT
Objective To investigate the clinical value of procalcitonin (PCT) levels in bacteria identification in intensive care unit (ICU) patients with bloodstream infection.Methods There were 540 cases of patients with bloodstream infection in our ICU between December 2007 and December 2013.The PCT levels and bacteria were identified.The application effectiveness of PCT levels in the bacteria identification was studied.Results The G+ bacteria infection rate was 49.63％ (268/540),G-bacteria infection rate was 38.52％ (208/540),and the fungal infection rate was 11.85％ (64/540).The patients of G-bacteria had significant difference with G + bacteria and fungal infection (P ＜ 0.05).The PCT average and positive rate of G-bacteria were significantly higher than G + bacteria and fungi group (P ＜ 0.05),respectively.G+ bacteria and fungi infection did not have significant difference (P ＞ 0.05).When PCT ＞ 2.04 ng/ml,the sensitivity and specificity that applying serum PCT level to identify the between G-and G+ bacteria were 82.18％ and 76.09％,respectively.When PCT ＞3.16 ng/ml,the sensitivity and specificity that applying serum PCT level to identify the between G-and fungus bacteria were 59.42％ and 65.73％,respectively.Conclusions The identification between G-bacteria and G + bacteria,fungi with applying PCT level in bloodstream infections had high accuracy.When the PCT levels was greater than 2.04 ng/ml,the occurrence of G-bacteria was greater risk of infection.The accuracy of PCT level identifying the G + bacteria and fungi was poor.
ABSTRACT
Objective To develop the Assessment Scale for Patient Safety Culture in ICU and do psychometric test.Methods The Assessment Scale for Patient Safety Culture in ICU was developed based on literature review,qualitative interview,and two-round Delphi consultation.The reliability and validity were tested among 235 chnical nurses and doctors in ICU.Results A 45-item questionnaire was originally developed and eleven of them were deleted after subjective screening,project analysis and exploratory factor analysis.Seven factors were extracted with cumulative contribution rate of 59.347％.The scale of total Cronbach's alpha coefficient was 0.909; the split half reliability was 0.832.Each dimension of Cronbach's alpha coefficient was between 0.481～0.909,and the split half reliability was 0.481～0.866.All had significance in statistics above.Conclusions The Assessment Scale for Patient Safety Culture in ICU has good reliability and validity,which can be used to evaluate the ICU patient safety culture atmosphere domestically.