Safety of on-scene medical care by EMS nurses in non-transported patients: a prospective, observational study

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Abstract

Background

After on-scene examination and /or treatment, emergency medical services (EMS) nurses must decide whether the patient requires further assessment or treatment, most frequently in a hospital. The primary objective of this study was to assess the reliability of the current EMS protocol by determining whether the decision not to transport the patient to a care provider was correct or not.

Methods

Adults receiving on-scene medical care by an EMS rapid responder or full team without transport to the hospital were included in this prospective observational study. The primary outcome measure was secondary consultation within 24 h after an on-scene EMS evaluation without transport for the same or a closely related complaint. The secondary outcome measures were patient satisfaction, type of secondarily consulted health care provider, provisional and definitive diagnosis, and correctness of the EMS members’ decision to provide on-scene medical care without transport.

Results

Of the 1095 participating patients, 271 (24.7%) patients requested secondary medical attention for the same complaint. This percentage was significantly larger in incidents attended by an ambulance team than by a rapid responder ( N = 248 (26.5%) vs. N = 23 (14.4%); p < 0.05). In eleven (1.0%) cases an urgent medical diagnosis requiring admission was missed. A total of 873 (79.7%) patients were satisfied with the decision not to be transported. In 44 (4.0%) cases the EMS nurse’s decision was rated incorrect since the patient needed help contradictory to the EMS nurse’s recommendation.

Conclusions

The data show that EMS nurses can effectively examine patients, but a low threshold of referral for consultation should be considered because one in four patients requested secondary medical attention for the same complaint(s) again. However, due to a low response rate (11.3%) more research is needed to further determine the safety of the current EMS protocol.

Trial registration

Not applicable.

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Most cited references 9

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A patient-safety and professional perspective on non-conveyance in ambulance care: a systematic review

Remco H.A. Ebben, Lilian Vloet, Renate F. Speijers … (2017)

Background This systematic review aimed to describe non-conveyance in ambulance care from patient-safety and ambulance professional perspectives. The review specifically focussed at describing (1) ambulance non-conveyance rates, (2) characteristics of non-conveyed patients, (3) follow-up care after non-conveyance, (4) existing guidelines or protocols, and (5) influencing factors during the non-conveyance decision making process. Methods We systematically searched MEDLINE, PubMed, CINAHL, EMBASE, and reference lists of included articles, in June 2016. We included all types of peer-reviewed designs on the five topics. Couples of two independent reviewers performed the selection process, the quality assessment, and data extraction. Results We included 67 studies with low to moderate quality. Non-conveyance rates for general patient populations ranged from 3.7%–93.7%. Non-conveyed patients have a variety of initial complaints, common initial complaints are related to trauma and neurology. Furthermore, vulnerable patients groups as children and elderly are more represented in the non-conveyance population. Within 24 h–48 h after non-conveyance, 2.5%–6.1% of the patients have EMS representations, and 4.6–19.0% present themselves at the ED. Mortality rates vary from 0.2%–3.5% after 24 h, up to 0.3%–6.1% after 72 h. Criteria to guide non-conveyance decisions are vital signs, ingestion of drugs/alcohol, and level of consciousness. A limited amount of non-conveyance guidelines or protocols is available for general and specific patient populations. Factors influencing the non-conveyance decision are related to the professional (competencies, experience, intuition), the patient (health status, refusal, wishes and best interest), the healthcare system (access to general practitioner/other healthcare facilities/patient information), and supportive tools (online medical control, high risk card). Conclusions Non-conveyance rates for general and specific patient populations vary. Patients in the non-conveyance population present themselves with a variety of initial complaints and conditions, common initial complaints or conditions are related to trauma and neurology. After non-conveyance, a proportion of patients re-enters the emergency healthcare system within 2 days. For ambulance professionals the non-conveyance decision-making process is complex and multifactorial. Competencies needed to perform non-conveyance are marginally described, and there is a limited amount of supportive tools is available for general and specific non-conveyance populations. This may compromise patient-safety. Electronic supplementary material The online version of this article (doi:10.1186/s13049-017-0409-6) contains supplementary material, which is available to authorized users.

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Emergency (999) calls to the ambulance service that do not result in the patient being transported to hospital: an epidemiological study.

Kala P. Marks, Jereme Spiers, M Vijver … (2002)

To describe the demographic and clinical characteristics of patients who are not transported to hospital after an emergency (999) call to the East Midlands Ambulance Service, the reason for non-transportation, and the priority assigned when the ambulance is dispatched. The first 500 consecutive non-transported patients from 1 March 2000 were identified from the ambulance service command and control data. Epidemiological and clinical data were then obtained from the patient report form completed by the attending ambulance crew and compared with the initial priority dispatch (AMPDS) code that determined the urgency of the ambulance response. Data were obtained for 498 patients. Twenty six per cent of these calls were assigned an AMPDS delta code (the most urgent category) at the time the call was received. Falls accounted for 34% of all non-transported calls. This group of patients were predominantly elderly people (over 70 years old) and the majority (89%) were identified as less urgent (coded AMPDS alpha or bravo) at telephone triage. The mean time that an ambulance was committed to each non-transported call was 34 minutes. This study shows that falls in elderly people account for a significant proportion of non-transported 999 calls and are often assigned a low priority when the call is first received. There could be major gains if some of these patients could be triaged to an alternative response, both in terms of increasing the ability of the ambulance service to respond faster to clinically more urgent calls and improving the cost effectiveness of the health service. The AMPDS priority dispatch system has been shown to be sensitive but this study suggests that its specificity may be poor, resulting in rapid responses to relatively minor problems. More research is required to determine whether AMPDS prioritisation can reliably and safely identify 999 calls where an alternative to an emergency ambulance would be a more appropriate response.

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Why are people without medical needs transported by ambulance? A study of indications for pre-hospital care.

Johan Herlitz, Lena Hjälte, Björn-Ove Suserud … (2007)

The purpose of this report was to describe the characteristics of patients transported by ambulance, in spite of being evaluated by the ambulance staff at the scene as not requiring prehospital care. A second aim was to compare these patients with those judged as being in need of this care. Three ambulance service districts located in different rural and metropolitan geographical areas were included in the study and all three were covered by a single emergency dispatch centre. Following the dispatch of ambulances, the staff assessed and recorded the medical needs of the patients at the scene, according to a questionnaire developed for the study. In addition to the questionnaire, data were extracted from the ambulance medical records database for each patient. If the patients were just transported by ambulance without receiving any other prehospital intervention, they were assessed as not being in need of the emergency service. The evaluation included events at the scene and during transportation. The ambulance staff making the needs assessments were emergency medical technicians and registered nurses. In this report, 604 patients who did not require prehospital care are described and compared with the remaining group of patients who required this care (1373). For analysis, descriptive statistics were used to analyse the data. The ambulance staff assessed that, among patients reported by the emergency medical dispatch centre as having abdominal or urinary problems, 42% did not need the ambulance service. Even among intrahospital transports (patients for whom medical personnel made the request for an ambulance), 45% did not require ambulance transport, as judged by the ambulance staff. Among patients reported by the emergency medical dispatch centre as having chest pain or other heart symptoms or trauma/accidents, respectively, only small percentages (18%) and (17%) did not require the ambulance service, as assessed by the ambulance staff. Most of the patients without obvious medical needs had been allocated an ambulance response for nonurgent conditions, that is priority level 2 or 3, but patients without medical needs were even found at the highest priority level 1. Of the patients who did not require an ambulance, more than half (55%) would have been able to get to a hospital in their own car or by taxi, whereas the remainder of the patients needed a transport vehicle in which they could lie down, but which was not equipped and staffed like an ambulance. Among the patients transported by the emergency medical service system in the study areas, a significant percentage were judged by the ambulance staff as not being in need of prehospital interventions. The majority were transported by a fully equipped emergency medical ambulance to an emergency medical department at a hospital, without requiring any prehospital interventions either at the scene or during transportation. The emergency medical service organization has to develop clear criteria for the utilization of ambulance services that can be accepted and implemented by the dispatch centres and by healthcare personnel. These criteria need to include safety margins and at the same time enable the appropriate use of resources.

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Author and article information

Contributors

Wim Breeman: wbreeman@me.com

Nathan A. Poublon: napoublon@gmail.com

Michael H. J. Verhofstad: m.verhofstad@erasmusmc.nl

Esther M. M. Van Lieshout:

ORCID: http://orcid.org/0000-0002-2864-214X

+31.10.7031050 , e.vanlieshout@erasmusmc.nl

Journal

Journal ID (nlm-ta): Scand J Trauma Resusc Emerg Med

Journal ID (iso-abbrev): Scand J Trauma Resusc Emerg Med

Title: Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine

Publisher: BioMed Central (London )

ISSN (Electronic): 1757-7241

Publication date (Electronic): 14 September 2018

Publication date PMC-release: 14 September 2018

Publication date Collection: 2018

Volume: 26

Electronic Location Identifier: 79

Affiliations

[1 ]GRID grid.491151.9, AmbulanceZorg Rotterdam-Rijnmond, ; P.O. Box 4, 2990 AA Barendrecht, The Netherlands

[2 ]ISNI 000000040459992X, GRID grid.5645.2, Trauma Research Unit Department of Surgery, Erasmus MC, , University Medical Center Rotterdam, ; P.O. Box 2040, 3000 CA Rotterdam, The Netherlands

Author information

Esther M. M. Van Lieshout http://orcid.org/0000-0002-2864-214X

Article

Publisher ID: 540

DOI: 10.1186/s13049-018-0540-z

PMC ID: 6137918

PubMed ID: 30217231

SO-VID: fe70949d-ccb1-4fcd-9514-797e0ddd212c

License:

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License ( http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver ( http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

History

Date received : 27 April 2018

Date accepted : 29 August 2018

Custom metadata

ScienceOpen disciplines: Emergency medicine & Trauma

Keywords: ems,ambulance,non-transport,non-conveyance,paramedics,on-scene,care on the scene

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ScienceOpen disciplines: Emergency medicine & Trauma

Keywords: ems, ambulance, non-transport, non-conveyance, paramedics, on-scene, care on the scene

Safety of on-scene medical care by EMS nurses in non-transported patients: a prospective, observational study

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Abstract

Background

Methods

Results

Conclusions

Trial registration

Related collections

Preventive and Emergency Medicine Insights

Most cited references 9

A patient-safety and professional perspective on non-conveyance in ambulance care: a systematic review

Emergency (999) calls to the ambulance service that do not result in the patient being transported to hospital: an epidemiological study.

Why are people without medical needs transported by ambulance? A study of indications for pre-hospital care.

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