A New Method of Matrix-Based Triage for Nuclear Disasters.

During nuclear disaster, infrastructure is severely damaged and injuries are often combined with trauma/burns and whole-body radiation. This makes triage difficult, especially when resources are severely deficient. To solve this problem, in this article, the authors have suggested a new less technology-dependent radiation dosimetry and quick triage using a specially designed triage matrix during nuclear disasters.

Triage Modeling for Differential Diagnosis Between COVID-19 and Human Influenza A Pneumonia: Classification and Regression Tree Analysis.

Background: The coronavirus disease 2019 (COVID-19) pandemic has lasted much longer than an influenza season, but the main signs, symptoms, and some imaging findings are similar in COVID-19 and influenza patients. The aim of the current study was to construct an accurate and robust model for initial screening and differential diagnosis of COVID-19 and influenza A. Methods: All patients in the study were diagnosed at Fuyang No. 2 People's Hospital, and they included 151 with COVID-19 and 155 with influenza A. The patients were randomly assigned to training set or a testing set at a 4:1 ratio. Predictor variables were selected based on importance, assessed by random forest algorithms, and analyzed to develop classification and regression tree models. Results: In the optimal model A, the best single predictor of COVID-19 patients was a normal or high level of low-density lipoprotein cholesterol, followed by low level of creatine kinase, then the presence of <3 respiratory symptoms, then a highest temperature on the first day of admission <38°C. In the suboptimal model B, the best single predictor of COVID-19 was a low eosinophil count, then a normal monocyte ratio, then a normal hematocrit value, then a highest temperature on the first day of admission of <37°C, then a complete lack of respiratory symptoms. Conclusions: The two models provide clinicians with a rapid triage tool. The optimal model can be used to developed countries/regions and major hospitals, and the suboptimal model can be used in underdeveloped regions and small hospitals.

Reliability of triage systems for paediatric emergency care: a systematic review.

OBJECTIVE: To present a systematic review on the reliability of triage systems for paediatric emergency care. METHODS: A search of MEDLINE, Cochrane Library, Latin American and Caribbean Health Sciences Literature, Scientific Electronic Library Online, Nursing Database Index and Spanish Health Sciences Bibliographic Index for articles in English, French, Portuguese or Spanish was conducted to identify reliability studies of five-level triage systems for patients aged 0-18 years published up to April 2018. Two reviewers performed study selection, data extraction and quality assessment as recommended by the Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement. RESULTS: Twenty studies on nine triage systems were selected: the National Triage System (n=1); the Australasian Triage Scale (n=3); the paediatric Canadian Triage and Acuity Scale (PedCTAS) (n=5); the Manchester Triage System (MTS) (n=1); the Emergency Severity Index (ESI) (n=5); an adaptation of the South African Triage Scale for the Princess Marina Hospital in Botswana (n=1); the Soterion Rapid Triage System (n=1); the Rapid Emergency Triage and Treatment System-paediatric version (n=2); the Paediatric Risk Classification Protocol (n=1). Ten studies were performed with actual patients, while the others used hypothetical scenarios. The studies were rated low (n=14) or moderate (n=6) quality. Kappa was the most used statistic, although many studies did not specify the weighting. PedCTAS, MTS and ESI V.4 exhibited substantial to almost perfect agreement in moderate quality studies. CONCLUSIONS: There is some evidence on the reliability of the PedCTAS, MTS and ESI V.4, but most studies are limited to the countries where they were developed. Efforts are needed to improve the quality of the studies, and cross-cultural adaptation of those tools is recommended in countries with different professional qualification and sociocultural contexts.

A pilot study examining the speed and accuracy of triage for simulated disaster patients in an emergency department setting: Comparison of a computerized version of Canadian Triage Acuity Scale (CTAS) and Simple Triage and Rapid Treatment (START) methods.

OBJECTIVE: To compare emergency department triage nurses' time to triage and accuracy of a simulated mass casualty incident (MCI) population using a computerized version of CTAS or START systems. METHODS: This pilot study was a prospective trial using a convenience sample. A total of 20 ED triage nurses, 10 in each arm of the study, were recruited. The paper-based questionnaire contained nine simulated MCI vignettes. An expert panel arrived at consensuses on the wording of the vignettes and created a standard triage score from which to compare the study participants. Linear regression and chi-squared test were used to examine the time to triage and accuracy of triage, respectively. RESULTS: The mean triage time for computerized CTAS (cCTAS) and START were 138 seconds/patient and 33 seconds/patient, respectively. The effect size due to triage method was 108 seconds/patient (95% CI 83-134 seconds/patient). The cumulative triage accuracy for the cCTAS and START tools were 70/90 (77.8%) and 65/90 (72.2%), respectively. The percent difference between cumulative triage was 6% (95% CI -19-8%). CONCLUSIONS: Triage nurses completed START triage 105 seconds/patient faster when compared to cCTAS triage and a similar level of accuracy between the two methods was achieved. However, when the typing time is taken into consideration cCTAS took 45 seconds/patient longer. The use of either CTAS or START in the ED during a MCI may be reasonable but choosing one method over another is not justified from this investigation.

Improving the prompt identification of the Emergency Severity Index level 2 patient in triage: rapid triage and the registered nurse greeter.

INTRODUCTION: High triage volumes can delay rapid identification of walk in ESI level 2 patients. This concern coupled with persistently increasing volumes prompted the Reading Hospital Emergency Department to move from single-tiered triage to duel-tiered rapid triage in 2008, then brought the addition of the RN Greeter in 2011. The purpose of this study was to assess how rapid triage then the RN Greeter impacted the ability to quickly identify the walk-in ESI 2 patient. METHODS: A retrospective analysis of mini-registration to triage time was conducted on ESI level 2 patients entering the ED by means other than ambulance. Data was collected from three separate time frames: The first representing single-tiered triage, the second duel-tiered rapid triage, and the third duel-tiered triage with the RN Greeter. RESULTS: Data demonstrated despite increasing volumes both rapid triage and the RN Greeter improved the prompt identification of ESI 2 patients. DISCUSSION: While moving from single to duel-tiered triage met little resistance from staff, the RN Greeter role was initially not as well received. However, as empirical data demonstrated the efficacy of the RN Greeter to quickly identify the potential ESI 2 patient, the role ultimately became an integral part of triage.

Analysis of chromosome damage for biodosimetry using imaging flow cytometry.

The dicentric chromosome assay (DCA), which involves counting the frequency of dicentric chromosomes in mitotic lymphocytes and converting it to a dose-estimation for ionizing radiation exposure, is considered to be the gold standard for radiation biodosimetry. Furthermore, for emergency response, the DCA has been adapted for triage by simplifying the scoring method [1]. With the development of new technologies such as the imaging flow cytometer, it may now be possible to adapt this microscope-based method to an automated cytometry method. This technology allows the sensitivity of microscopy to be maintained while adding the increased throughput of flow cytometry. A new protocol is being developed to adapt the DCA to the imaging cytometer in order to further increase the rapid determination of a biological dose. Peripheral blood mononuclear cells (PBMC) were isolated from ex vivo irradiated whole blood samples using a density gradient separation method and cultured with PHA and Colcemid. After 48h incubation, the chromosomes were isolated, stained for DNA content with propidium iodide (PI) and labelled with a centromere marker. Stained chromosomes were then analyzed on the ImageStream(×) (EMD-Millipore, Billerica, MA). Preliminary results indicate that individual chromosomes can be identified and mono- and dicentric chromosomes can be differentiated by imaging cytometry. A dose response curve was generated using this technology. The details of the method and the dose response curve are presented and compared to traditional microscope scoring. Imaging cytometry is a new technology which enables the rapid, automated analysis of fluorescently labelled chromosomes. Adapting the dicentric assay to this technology has the potential for high throughput analysis for mass casualty events.

Evaluación inicial del paciente pediátrico: ¿cómo se debe realizar? / Initial Assessment of the Pediatric Patient: How to Perform?

En el servicio de urgencias de pediatría es fundamental reconocer de forma precoz lossignos clínicos que indican amenaza para la vida del paciente y que se deben manejarágil y oportunamente. Ello se constituye en un reto para el personal de salud que loasiste, pues se requiere una valoración inicial rápida enfocada en un punto de vistafisiopatológico que analice la afectación hemodinámica y la insuficiencia respiratoria,a fin de prevenir un paro cardiorrespiratorio. Esta primera aproximación que sepropone se denomina triángulo de evaluación pediátrica (TEP), basado en apariencia(aspecto general), respiración y circulación, a partir del cual se realiza un examenvisual y uno auditivo en los primeros segundos de la llegada del paciente pediátrico alservicio de urgencias. Este permite una categorización del estado clínico y tomar unadecisión adecuada...

In the pediatric emergency department, it is essentialto recognize early clinical signs that indicatethreat to the patient’s life and should behandled quickly, becoming a challenge for themedical team assisting. It requires a quick initialassessment of the critically ill patient, approachingit from a physiological point of viewby analyzing the hemodynamic and respiratorycompromise, preventing cardiac arrest. Thisfirst approach is called the Pediatric AssessmentTriangle based on general appearance, breathingand circulation, in which visual and auditoryexamination is performed in the first seconds ofthe arrival of the pediatric patient to the emergencyroom allowing categorization of the clinicalstatus to make the right decision...

Application of quick triage assessment system in emergency patients / 中国实用护理杂志

Objective To study the quick triage assessment system for emergency nurse, establish evaluation model and method, select indicators and contents, guide triage nurses to be accurate, fast, convenient and practical, and also to optimize the use of emergency medical resources. Methods Screening the target population to conduct the research, collecting main indicators and features covered with main symptom and characteristics of severe critical emergency patients, selecting manifestation form of triage assessment system. Results The selected indicators and contents were demonstrated by a table-based form, and the quick triage assessment form for emergency nurse was established to instruct triage work. Conclusions This established quick triage assessment form is simple, intuitive and can improve the quality of emergency triage work. It possesses feasibility, practicality and achieves the optimal medical services with the limited emergency medical resources, which shows both social and economic effect.