Development and Validation of a Safety Scale Perceived by the Witness of Prehospital Emergency Care.

OBJECTIVE: The aim of the study was to design and validate a new tool to measure the security perceived by witnesses of patient care and hospital transfers, after requesting urgent assistance via the "061" phone number. METHODS: This is a descriptive observational, cross-sectional, design, and validation study of a scale conducted by telephone interview. Witnesses of urgent assistance and transfers by prehospital emergency medical services in the province of Cadiz, in the south of Spain, were the subjects of study. A questionnaire was designed after focus groups with patients, witnesses, and professionals. It consisted of 10 items, with Likert-type answers, and a range of 0 to 50 points. In addition to basic criteria (frequency of endorsement and ability to discriminate between groups), their validity (content and construct) and reliability (stability and homogeneity) were evaluated. Stability was evaluated by test-retest and homogeneity by means of two properties: internal consistency of items (corrected item-scale correlation coefficient) and internal consistency of the scale (Cronbach α coefficient). RESULTS: A total of 849 questionnaires were obtained, with scores between 0 and 50 points, with an average of 47.31 (median of 50). The exploratory factor analysis detected a component that explained 61.1% of the total variance. The intraclass correlation coefficient was 0.933 with 95% confidence interval between 0.900 and 0.954. The corrected item-scale correlation coefficient was greater than 0.596, and the Cronbach α coefficient was 0.927 (95% confidence interval, 0.919-0.934). CONCLUSIONS: The ESPT10 Witness Perceived Safety Scale is valid and reliable for quantifying the safety perception of witnesses of emergency assistance and transfers.

Feeling safe or unsafe in prehospital emergency care: A qualitative study of the experiences of patients, carers and healthcare professionals.

AIMS AND OBJECTIVES: To determine the feelings of safety among patients taken to hospital after requesting urgent care, based on their experiences and those of their carers and prehospital emergency care professionals. BACKGROUND: Little research has been performed into the perception of safety in prehospital emergency care settings worldwide, from either the perspective of the patients or from that of healthcare professionals. DESIGN: Exploratory qualitative study using focus groups in Spain. METHODS: The participants were patients that requested care through the emergency telephone service, their carers and the professionals of the emergency care teams. The structured sampling design was based on an intentional, nonprobability selection following pragmatic criteria. Seven groups of patients/carers and two groups of professionals were formed (65 participants). The recordings were fully transcribed before their validation and codes were assigned to ensure anonymity. The ATLAS.ti software was used for the analysis. The authors took into account the COREQ checklist for qualitative studies. FINDINGS: Neither group provided a clear definition of the meaning of feeling safe. It appeared easier to give examples that had a positive or negative influence on their perception of feeling safe. During the analysis of the discourse, six categories were detected after grouping the related codes. CONCLUSIONS: For most of the patients' feeling of being safe or very safe arose from the perception of calmness, trust and protection. Defining the perception of safety was not easy. The factors with the greatest effect on feeling safe were related to Information and communication, Person-centred care and Professional competency, without losing sight of other factors such as Accessibility and response times of the emergency teams, Equipment and Healthcare setting. RELEVANCE TO CLINICAL PRACTICE: The findings could be used as a knowledge base in future research and for implementing procedures for improving perceptions of safety among patients.

Physico-chemical stability and sterility of previously prepared saline infusion solutions for use in out-of-hospital emergencies.

OBJECTIVE: The topic of this research was to determine whether out-of-hospital emergency teams could make use of previously prepared saline solutions (SS). The objective was to discover the physical, chemical and sterility characteristics of previously prepared saline infusions stored in ambulances and ascertain how long they remained in optimum condition. METHOD: Randomised clinical trial, triple blind, where study units consisted of saline solutions prepared with an infusion system and a three-way valve. The duration of the study was 12 months. Six intervention groups were designed on the basis of time of exposure and location. Samples consisted of 672 units. Twelve microbiological cultures were made and the pH, density, viscosity and CINa concentration were determined. We compared hypotheses with four models of linear regression for the variables and a model of logistic regression for the variables. A value of P < 0.05 was considered significant. RESULTS: We obtained results from 669 saline solutions (98.82%). Neither multivariant analysis nor ANOVA tests showed any significant association for a power greater than 99% with regard to the physical-chemical characteristics. The model of logistic regression also did not find any significant association for sterility. Colonisation was present in 1.7% of the 8,028 cultures made and more than 5 CFU per millilitre was found in only two cases. CONCLUSION: There is no evidence to suggest that recently prepared saline infusion solutions are any different from a physical-chemical and sterility point of view than those exposed for 24, 48, or 72 h. It was concluded that use can be made of previously prepared saline solutions with a guarantee their stability and sterility.