Background:Hand hygiene is considered one of the most important infection control measures for preventing health care-associated infections. Although the techniques involved in hand hygiene are simple, compliance with hand hygiene recommendations is poor worldwide.Objectives:We sought to perform a knowledge, attitudes, and practices (KAP) study on hand hygiene among medical residents at Imam Hossein hospital, Tehran, Iran.Patients and Methods:This cross-sectional KAP study was conducted among medical residents in Imam Hossein hospital, Iran, 2013. All medical residents from different wards were invited to participate in this study (270 in total). The world health organization questionnaires and an observational checklist were used to collect data. The χ2 test and the Fisher exact test were utilized to analyze the qualitative variables. Since the quantitative variables had no normal distribution, the Mann-Whitney test and the Kruskal-Wallis method were employed. A P value < 0.05 was considered statistically significant. The data were analyzed using SPSS, version 17.Results:The mean overall score of the residents’ knowledge was 14.2 ± 2.6 (mean ± SD). The residents received weak scores in attitudes and practices. Forty-nine percent (n = 124) of the residents responded to the questions on attitudes toward hand hygiene, and only 20.16% (n = 25) managed to identify the correct answer. Moreover, 3.1% (n = 8) of the residents adhered to the 8 standard steps, 12.1% (n = 31) washed their hands for 20 - 30 seconds, and only 2 residents observed the sequences of hand hygiene. Additionally, none of the residents performed hand washing with available means (water and hand-washing liquid) in the morning visit hours.Conclusions:Concerning hand hygiene, the residents had moderate knowledge but overall poor attitudes and practices. The present study underscores the need for further improvement in the existing training programs to address the gaps in KAP regarding hand hygiene.
BackgroundPatients who receive care in an emergency department (ED), are usually unattended while waiting in queues.ObjectivesThis study was done to determine, whether the application of queuing theory analysis might shorten the waiting times of patients admitted to emergency wards.Patients and MethodsThis was an operational study to use queuing theory analysis in the ED. In the first phase, a field study was conducted to delineate the performance of the ED and enter the data obtained into simulator software. In the second phase, "ARENA" software was used for modeling, analysis, creating a simulation and improving the movement of patients in the ED. Validity of the model was confirmed through comparison of the results with the real data using the same instrument. The third phase of the study concerned modeling in order to assess the effect of various operational strategies, on the queue waiting time of patients who were receiving care in the ED.ResultsIn the first phase, it was shown that 47.7% of the 3000 patient records were cases referred for trauma treatment, and the remaining 52.3% were referred for non-trauma services. A total of 56% of the cases were male and 44% female. Maximum input was 4.5 patients per hour and the minimum input was 0.5 per hour. The average length of stay for patients in the trauma section was three hours, while for the non-trauma section it was four hours. In the second phase, modeling was tested with common scenarios. In the third phase, the scenario with the addition of one or more senior emergency resident(s) on each shift resulted in a decreased length of stay from 4 to 3.75 hours. Moreover, the addition of one bed to the Intensive Care Unit (ICU) and/or Critical Care Unit (CCU) in the study hospital, reduced the occupancy rate of the nursing service from 76% to 67%. By adding another clerk to take electrocardiograms (ECG) in the ED, the average time from a request to performing the procedure is reduced from 26 to 18 minutes. Furthermore, the addition of 50% more staff to the laboratory and specialist consultations led to a 90 minute reduction in the length of stay. It was also shown that earlier consultations had no effect on the length of stay.ConclusionsApplication of queuing theory analysis can improve movement and reduce the waiting times of patients in bottlenecks within the ED throughput.
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