Evaluating the Impact of a Novel Mobile Care Team on the Prevalence of Ambulatory Care Sensitive Conditions Presenting to Emergency Medical Services in Nova Scotia.

INTRODUCTION: Hospitalization due to ambulatory care sensitive conditions (ACSC) is a proxy measure for access to primary care. Emergency Medical Services (EMS) are increasingly called when primary care cannot be accessed. A novel paramedic-nurse EMS Mobile Care Team (MCT) was implemented in an under-serviced community. The MCT responds in a non-transport unit to referrals from EMS, emergency and primary care, and to low-acuity 911 calls in a defined geographic region. Our objective was to compare the prevalence of ACSC in ground ambulance (GA) responses before and after the introduction of the MCT. METHODS: A cross-sectional analysis of GA and MCT patients with ACSC (determined by chief complaint, clinical impression, treatment protocol, and medical history) from one year pre-MCT implementation to one year post-MCT implementation was conducted for the period of October 1, 2012, to September 30, 2014. Demographics were described. ACSC prevalence was compared using the chi-squared test. RESULTS: There were 975 calls pre-MCT and 1208 GA/95 MCT calls post-MCT. ACSC in GA patients pre- and post-MCT was similar: n=122, 12.5% vs. n=185, 15.3%; p=0.06. ACSC in patients seen by EMS (GA plus MCT) increased in the post-MCT period: 122 (12.5%) vs. 204 (15.7%) p=0.04. Pre-MCT implementation vs post-implementation, GA ACSC calls differed significantly by sex with higher female utilization (n=50 vs. n=105; p=0.007), but not age (65.38, ± 15.12 vs. 62.51 ± 20.48; p=0.16). Post-MCT, the prevalence of specific ACSC increased for GA: hypertension (p<0.001) and congestive heart failure (p=0.04). MCT patients with ACSC were less likely to have a primary care provider compared to GA (90.2% and 87.6% vs. 63.2%; p=0.003, p=0.004). CONCLUSION: The prevalence of ACSC did not decrease for GA with the introduction of the MCT, but ACSC in the overall patient population served by EMS increased. It is possible more patients with ACSC call, or are referred to EMS, for the new MCT service. Given that MCT patients were less likely to have a primary care provider, this may represent an increase in access to care or a shift away from other emergency/episodic care. These associations must be further studied to inform the ideal utility of adding such services to EMS and healthcare systems.

Paramedic Clinical Consults with a Paramedic or Nurse in an EMS Communications Center Compared to Traditional Online Physician Consults.

OBJECTIVES: In many emergency medical services (EMS) systems, a direct medical oversight physician is available to paramedics for mandatory and/or elective consultations. At the time of this study, a clinical support desk (CSD) was being implemented within the medical communications center of a provincial EMS system in addition to the physician resource. The CSD was initially staffed with a registered nurse or an advanced care paramedic. The objective of the current study was to compare CSD "peer to peer" consults versus physician consults with regards to consultation patterns, transport dispositions, and patient safety measures. METHODS: This retrospective cohort study analyzed 2 months before (September 1 to October 31, 2012) and 2 months after (September 1 to October 31, 2013) implementation of the CSD. In the before period, all clinical consults were fielded by the direct medical oversight physician. In the after period, consults were fielded by the physician, CSD or both. EMS databases were queried, and manual chart review and abstraction of audio recordings were done. Relapses back to EMS within 48 hours of non-transport were measured. RESULTS: 1621 consults were included, with 764 consults in the before period and 857 after (p = 0.02). The number of physician consults decreased from 764 before to 464 after (39.2%, p < 0.001), with the CSD taking 325 (37.9%) consults. The CSD was consulted more for police custody and trip destination. The physician was consulted more for cease resuscitation and clinical consults prior to medication administration. Overall non-transport rates were 595/764 before (77.9%), and 646/857 after (75.4%) (p = 0.2). Non-transports were 233/325 (71.7%) via the CSD, 364/464 (78.4%) via the physician, and 49/68 (72.1%) when both were involved (p = 0.07). Rate of relapse to EMS was similar before (25/524, 4.8%) and after (26/568, 4.6%) (p = 0.76), and between CSD (12/216, 5.5%) and physician consults (13/325, 4.0%) in the after period (p = 0.41). CONCLUSION: The introduction of a novel "peer-to-peer" consult program was associated with an increased total number of consults made and reduced call volume for direct medical oversight physicians. There was no change in the patient safety measure studied.

Paramedic Endotracheal Intubation Success Rates Before and After an Intensive Airway Management Education Session.

Introduction Advanced airway management by paramedics is potentially life-saving, but carries a significant risk to patient safety and can be associated with poor clinical outcome if performed incorrectly. Previously, our team had found that an intensive education intervention demonstrated an improvement in paramedic performance on a written exam and increased confidence in airway skills. This study measured intubation success and the number of attempts per patient before and after intensive paramedic airway management education intervention. Methods A 10-hour mandatory course was taken by all advanced life support (ALS) paramedics in a provincial system (2009/04-07, n=~395). The course was done during semi-annual continuing education Emergency Health Services (EHS) in-services. These day-long courses were held in person over four months. The electronic charting database was queried for intubation attempts and successful placements 12 months before the training, during the four months of training, and 12 months post-training. The primary outcome is the difference in success rates between the before (pre-intervention) and after (post-intervention) periods. The secondary outcome is the number of attempts per patient. Stationarity of success in pre- and post-periods was tested. The model was fit tested using Maximum Likelihood regression, and variables were tested using the Wald test. Results A sample size of 476 intubation attempts in each of the pre- and post-periods was required to detect a 10% improvement with the pre-intervention success of 60%. A total of 1421 intubation attempts occurred; 674 pre-intervention, 604 post-intervention, and 143 during teaching. Seven attempts were excluded (success unknown). Intubation success rates improved, from 0.68 (95% CI 0.64-0.71) to 0.75 (95% CI 0.72-0.78); a difference of 0.076 (95% CI 0.03-0.12) (p = 0.001). Intubation success rates in the pre-intervention and post-intervention periods were found to be static. A significant decrease was found in the number of attempts per patient in the post-period (p = 0.005). Conclusion Intubation success increased from 68% to 75% and was maintained over the 12-month post-period. There is a potential that judgment may also have improved, based on the decreased number of attempts per patient. Limitations include missing values, paramedics' self-reported number of attempts, and the definition of what is considered to be an attempt. In addition to previously demonstrated improvements in paramedic exam and scenario performance, this airway education intervention appears to have made a significant improvement to patient outcomes. These findings support the value of such education interventions to improve performance.

Immediate Interventions for Presyncope of Vasovagal or Orthostatic Origin: A Systematic Review.

Background: Syncope is a common condition that may be prevented. There are non-pharmacological interventions that may be of benefit during the acute episode preceding syncope (presyncope), including physical counter-pressure maneuvers (PCM) or change of body position. We performed a systematic review of interventions that may be applied during presyncope as an immediate, first aid tactic. Methods: We searched Medline, Embase, and CINAHL and used the Grading of Recommendations Assessment, Development and Evaluation methods, and risk of bias assessments to determine the certainty of the evidence. We included randomized controlled trials (RCTs), non-randomized studies, and case series investigating adults and children with signs and symptoms of presyncope of suspected vasovagal or orthostatic origin who applied any intervention that could be used as an immediate, first aid intervention. We examined the following outcomes: prevention of syncope, adverse events, symptom improvement, and vital signs. We conducted a sub-group analysis based on the etiology of vasovagal or orthostatic presyncope. Results: We screened 5,160 titles and abstracts followed by 81 full text articles. We identified 8 studies meeting inclusion criteria, including 2 RCTs and 6 observational studies. All studies used PCM in adults and all were judged to be of low and very low certainty of evidence. For prevention of syncope, one RCT demonstrated benefit with the use of PCM (RR = 1.80 [1.26-1.89]), while observational studies failed to show benefit (RR = 1.31 [0.98 - 1.75]). Two RCTs showed benefit in symptom improvement (RR = 6.00 [2.21 - 8.61] and (RR = 1.57 [1.06 - 1.93]). Blood pressure (BP) improved with the use of PCM: systolic BP mean difference (MD) 21 mmHg higher (95% CI: 18.25 to 23.41 BPM) and diastolic BP MD 11 mmHg higher (95% CI: 9.39 to 13.10 mmHg higher). No adverse events were reported. Conclusion: While there is a minimal amount of evidence available and the findings were mixed, PCM may provide benefit for prevention of syncope during acute episodes of presyncope and may be tried in the first aid setting. No evidence was found for other non-pharmacologic interventions or for the use of PCM in children.

Adherence to "No Transfer to Hospital" Advance Directives Among Nursing Home Residents.

OBJECTIVES: Many older adults in long-term care (LTC) experience acute health crises but are at high risk of transfer distress and in-hospital morbidity and mortality. Residents often complete advance directives (ADs) regarding future care wishes, including directives for hospital transfers. This study aims to estimate the prevalence of, and adherence to, "no transfer to hospital" ADs in LTC, and to explore the circumstances leading to transfers against previously expressed directives. DESIGN: We conducted a mixed methods study in 10 nursing homes in Nova Scotia, Canada. A total of 748 resident charts and Emergency Health Services (EHS) database notes were reviewed from 3 time periods spanning implementation of a new primary care model, Care by Design (CBD). MEASURES: ADs were divided into those requesting transfer to hospital vs on-site management only, which were then analyzed in relation to actual hospital transfers. Reasons for EHS calls, management, and qualitative data were derived from the EHS database. Resident variables were obtained from LTC charts. Measures were compared between time periods. RESULTS: ADs were complete in 92.4% of charts. Paramedics were called for 80.5% of residents, and 73.6% were transferred to hospital, 51.3% of whom had explicit ADs to the contrary. The majority of those were transferred for fall-related injuries, followed by medical illness. Unclear care plans, symptom control, and perceived need for investigations and procedures all influenced transfer decisions. CONCLUSIONS/IMPLICATIONS: The use of "no transfer to hospital" directives did not appear to impact the number of residents being transferred to acute care. Half of those transferred to hospital had explicit ADs to the contrary, largely driven by fall-related injury. The high incidence of injury-related transfers highlights an important gap in advance care planning. Clarifying transfer preferences for injury management in advance directives may lead to better end-of-life experiences for residents and improve effective resource utilization.

Paramedics providing palliative care at home: A mixed-methods exploration of patient and family satisfaction and paramedic comfort and confidence.

OBJECTIVE: Paramedics Providing Palliative Care at Home was launched in two provinces, including a new clinical practice guideline, database, and paramedic training. The aim of this study was to evaluate patient/family satisfaction and paramedic comfort and confidence. METHODS: In Part A, we gathered perspectives of patients/families via surveys mailed at enrolment and telephone interviews after an encounter. Responses were reported descriptively and by thematic analysis. In Part B, we surveyed paramedics online pre- and 18 months post-launch. Comfort and confidence were scored on a 4-point Likert scale, and attitudes on a 7-point Likert scale, reported as the median (interquartile range [IQR]); analysis with Wilcoxon ranked sum/thematic analysis of free text. RESULTS: In Part A, 67/255 (30%) enrolment surveys were returned. Three themes emerged: fulfilling wishes, peace of mind, and feeling prepared for emergencies. In 18 post-encounter interviews, four themes emerged: 24/7 availability, paramedic professionalism and compassion, symptom relief, and a plea for program continuation. Thematic saturation was reached with little divergence. In Part B, 235/1255 (18.9%) pre- and 267 (21.3%) post-surveys were completed. Comfort with providing palliative care without transport improved post launch (p = < 0.001) as did confidence in palliative care without transport (p = < 0.001). Respondents strongly agreed that all paramedics should be able to provide basic palliative care. CONCLUSIONS: After implementation of the multifaceted Paramedics Providing Palliative Care at Home Program, paramedics describe palliative care as important and rewarding. The program resulted in high patient/family satisfaction; simply registering provides peace of mind. After an encounter, families particularly noted the compassion and professionalism of the paramedics.

CONTEXTE: Un programme de prestation de soins palliatifs à domicile par des ambulanciers paramédicaux a été lancé dans deux provinces, précédé de l'extension d'un guide de pratique clinique, de la mise à jour d'une base de données et de l'élaboration d'une formation particulière à l'intention des ambulanciers paramédicaux. Ont été évalués le degré de satisfaction des patients et des familles ainsi que le degré d'aisance et de confiance des ambulanciers paramédicaux. MÉTHODE: Dans la partie A, il y a eu collecte de données sur le point de vue des patients et des familles à l'aide d'un questionnaire d'enquête envoyé par la poste au moment de la sélection et d'entrevues téléphoniques après les rencontres. Les réponses ont été présentées en style descriptif et sous forme d'analyse thématique. Dans la partie B, une enquête en ligne a été menée parmi les ambulanciers paramédicaux avant le lancement du programme et 18 mois après celui-ci. Le degré d'aisance et de confiance a été évalué sur une échelle de Likert de 4 points, et les attitudes, sur une échelle de Likert de 7 points; les résultats ont été exprimés sous forme d'intervalles interquartiles (IQ) médians; l'analyse des données, calculée à l'aide du test de Wilcoxon, et les textes libres, présentés sous forme d'analyse thématique. RÉSULTATS: Dans la partie A, 67 questionnaires sur 255 (30%) ont été remis. Trois thèmes importants se sont dégagés des réponses : la satisfaction des désirs, la tranquillité d'esprit et le sentiment de préparation à toute éventualité. Par ailleurs, il y a eu 18 entrevues après les rencontres, desquelles se sont dégagés quatre grands thèmes : la disponibilité des soins 24 h sur 24, 7 jours sur 7; le professionnalisme et la compassion des ambulanciers paramédicaux; le soulagement des symptômes et un appel pressant en faveur de la poursuite du programme. La saturation thématique s'est obtenue avec un faible degré de divergence. Dans la partie B, 235 questionnaires sur 1255 (18,9%) ont été remplis avant le lancement du programme, et 267 sur 1255 (21,3%), après la mise en œuvre. Le degré d'aisance et la prestation de soins palliatifs, dans le contexte d'absence de transport des malades, se sont améliorés après le lancement (p ( 0,001); il en allait de même pour le degré de confiance dans la prestation de soins palliatifs, dans le même contexte (p ( 0,001). Les répondants étaient fortement d'avis que tous les ambulanciers paramédicaux devraient être en mesure de fournir des soins palliatifs de base. CONCLUSION: Après la mise en œuvre de ce programme à volets multiple, les ambulanciers paramédicaux considéraient la prestation de soins palliatifs comme un geste important et gratifiant. Le programme a donné lieu à un degré élevé de satisfaction tant des patients que des familles, et la facilité d'inscription a procuré la tranquillité d'esprit. Enfin, après une rencontre, les familles ont souligné tout particulièrement le professionnalisme et la compassion des ambulanciers paramédicaux.

Methodology of a Cross-sectional Study Evaluating the Impact of a Novel Mobile Care Team on the Prevalence of Ambulatory Care Sensitive Conditions Presenting to Emergency Medical Services.

Introduction Hospitalization due to ambulatory care sensitive conditions (ACSC) is often used as a proxy measure for access to primary care. The prevalence of ACSC has not been measured in the prehospital setting. Emergency medical services (EMS) are being used by patients who lack access to primary care for ACSC. Many novel models of care have been implemented within Canada and internationally, utilizing paramedics to ease the burden of poor primary care access. Recently, a mobile care team (MCT) consisting of a paramedic/nurse configuration has been deployed in the community of New Waterford, Nova Scotia. The team responds to low acuity 911 calls and follow-up appointments booked by primary care clinicians. This study will identify the prevalence of patients with ACSC presenting to EMS before and after the implementation of MCT and the differences after the implementation of the MCT. Methods Secondary data will be collected from the centralized EMS electronic patient care report (ePCR) database. All patients presenting to the ground ambulance with ACSC during the year prior to MCT implementation, all patients presenting to the ground ambulance with ACSC during the year post-MCT implementation, and all patients presenting to the MCT with ACSC will be included for analysis, allowing for a calculation of ACSC prevalence. Descriptive methods will be used for age, sex, primary care practitioner, and ASCS complaints. Prevalence data will be compared via the chi-squared test. A subgroup analysis of age, sex, and individual presenting conditions will also be analyzed using the chi-squared test. Confounding will be dealt with via multivariate logistic regression. Results The study results are pending; however, a literature review reveals a paucity of data on ACSC in EMS. Conclusions Due to the paucity of literature surrounding ACSC prevalence in EMS, the methodology developed to study these prevalence rates is a novel protocol of importance to prehospital research and the epidemiology of ACSC more broadly.

State of the Evidence for Emergency Medical Services (EMS) Care: The Evolution and Current Methodology of the Prehospital Evidence-Based Practice (PEP) Program.

Background: Emergency medical services (EMS) leaders and clinicians need to incorporate evidence into safe and effective clinical practice. Access to high-quality evidence, and the time to synthesize it, can be barriers to evidence-based practice. The Prehospital Evidence-Based Practice (PEP) program is an online, freely accessible, repository of critically appraised evidence specific to EMS. This paper describes the evolution and current methodology of the PEP program. Methods|design: The purpose of PEP is to identify, catalog and critically appraise relevant studies. Following regular systematic searches, two trained appraisers critically appraise included studies and assign a score on three-point level of evidence (LOE) and direction of evidence (DOE) scales. Each clinical intervention is plotted on a 3 × 3 (LOE × DOE) evidence matrix, which provides a summary recommendation. Discussion: The PEP program is a unique knowledge translation tool, specific to EMS. End-users can easily identify which clinical interventions are, or are not, supported by evidence.

Paramedic Learning Style Preferences and Continuing Medical Education Activities: A Cross-Sectional Survey Study.

BACKGROUND: Paramedics participate in continuing medical education (CME) to maintain their skills and knowledge. An understanding of learning styles is important for education to be effective. This study examined the preferred learning styles of ground ambulance paramedics and describes how their preferred learning styles relate to the elective CME activities these paramedics attend. METHODS: All paramedics (n=1,036) employed in a provincial ground ambulance service were invited to participate in a survey containing three parts: demographics, learning style assessed by the Kolb Learning Style Inventory (LSI), and elective CME activity. RESULTS: 260 paramedics (25%) participated in the survey. Preferred learning styles were: assimilator, 28%; diverger, 25%; converger, 24%; and accommodator, 23%. Advanced life support (ALS) providers had a higher proportion of assimilators (36%), and basic life support (BLS) providers had a higher proportion of divergers (30%). The learning style categories of CME activities attended by paramedics were: assimilators, 25%; divergers, 26%; convergers, 25%; and accommodators, 24%. CONCLUSION: These results suggest that paramedics are a diverse group of learners, and learning style differs within their demographics. Paramedics attend CME activities that complement all learning styles. Organizations providing education opportunities to paramedics should consider paramedics a diverse learning group when designing their CME programs.

Contemporary evidence-based practice in Canadian emergency medical services: a vision for integrating evidence into clinical and policy decision-making.

Nationally, emphasis on the importance of evidence-based practice (EBP) in emergency medicine and emergency medical services (EMS) has continuously increased. However, meaningful incorporation of effective and sustainable EBP into clinical and administrative decision-making remains a challenge. We propose a vision for EBP in EMS: Canadian EMS clinicians and leaders will understand and use the best available evidence for clinical and administrative decision-making, to improve patient health outcomes, the capability and quality of EMS systems of care, and safety of patients and EMS professionals. This vision can be implemented with the use of a structure, process, system, and outcome taxonomy to identify current barriers to true EBP, to recognize the opportunities that exist, and propose corresponding recommended strategies for local EMS agencies and at the national level. Framing local and national discussions with this approach will be useful for developing a cohesive and collaborative Canadian EBP strategy.

Paramedic Recognition of Sepsis in the Prehospital Setting: A Prospective Observational Study.

Background. Patients with sepsis benefit from early diagnosis and treatment. Accurate paramedic recognition of sepsis is important to initiate care promptly for patients who arrive by Emergency Medical Services. Methods. Prospective observational study of adult patients (age ≥ 16 years) transported by paramedics to the emergency department (ED) of a Canadian tertiary hospital. Paramedic identification of sepsis was assessed using a novel prehospital sepsis screening tool developed by the study team and compared to blind, independent documentation of ED diagnoses by attending emergency physicians (EPs). Specificity, sensitivity, accuracy, positive and negative predictive value, and likelihood ratios were calculated with 95% confidence intervals. Results. Overall, 629 patients were included in the analysis. Sepsis was identified by paramedics in 170 (27.0%) patients and by EPs in 71 (11.3%) patients. Sensitivity of paramedic sepsis identification compared to EP diagnosis was 73.2% (95% CI 61.4-83.0), while specificity was 78.8% (95% CI 75.2-82.2). The accuracy of paramedic identification of sepsis was 78.2% (492/629, 52 true positive, 440 true negative). Positive and negative predictive values were 30.6% (95% CI 23.8-38.1) and 95.9% (95% CI 93.6-97.5), respectively. Conclusion. Using a novel prehospital sepsis screening tool, paramedic recognition of sepsis had greater specificity than sensitivity with reasonable accuracy.

Impact of a Novel Collaborative Long-Term Care -EMS Model: A Before-and-After Cohort Analysis of an Extended Care Paramedic Program.

To compare system and clinical outcomes before and after an extended care paramedic (ECP) program was implemented to better address the emergency needs of long-term care (LTC) residents. Data were collected from emergency medical services (EMS), hospital, and ten LTC facility charts for two five-month time periods, before and after ECP implementation. Outcomes include: number of EMS patients transported to emergency department (ED) and several clinical, safety, and system secondary outcomes. Statistics included descriptive, chi-squared, t-tests, and ANOVA; α = <0.05. 413 cases were included (before: n = 136, 33%; after n = 277, 67%). Median patient age was 85 years (IQR 77-91 years) and 292/413 (70.7%) were female. The number of transports to ED before implementation was 129/136 (94.9%), with 147/224 (65.6%) after, p < 0.001. In the after period, fewer patients seen by ECP were transported: 58/128 (45.3%) vs. 89/96 (92.7%) of those not seen by ECP, p < 0.001. Hospital admissions were similar between phases: 39/120 (32.5%) vs. 56/213 (29.4%), p = NS, but in the after phase, fewer ECP patients were admitted vs. non-ECP: 21/125 (16.8%) vs. 35/88 (39.8%), p < 0.001. Mean EMS call time (dispatch to arrive ED or clear scene) was shorter before than after: 25 minutes vs. 57 minutes, p < 0.001. In the after period, calls with ECP were longer than without ECP: 1 hour, 35 minutes vs. 30 minutes, p < 0.001. The mean patient ED length-of-stay was similar before and after: 7 hours, 29 minutes compared to 8 hours, 11 minutes; p = NS. In the after phase, ED length-of-stay was somewhat shorter with ECPs vs. no ECPs: 7 hours, 5 minutes vs. 9 hours, p = NS. There were zero relapses after no-transport in the before phase and three relapses from 77 calls not transported in the after phase (3/77, 3.9%); two involved ECP (2/70, 2.8%). Reductions were observed in the number of LTC patients transported to the ED when the ECP program was introduced, with fewer patients admitted to the hospital. EMS calls take longer with ECP involved. The addition of ECP to the LTC model of care appears to be beneficial and safe, with few relapse calls identified.

Offload zones to mitigate emergency medical services (EMS) offload delay in the emergency department: a process map and hazard analysis.

UNLABELLED: Introduction Offload delay is a prolonged interval between ambulance arrival in the emergency department (ED) and transfer of patient care, typically occurring when EDs are crowded. The offload zone (OZ), which manages ambulance patients waiting for an ED bed, has been implemented to mitigate the impact of ED crowding on ambulance availability. Little is known about the safety or efficiency. The study objectives were to process map the OZ and conduct a hazard analysis to identify steps that could compromise patient safety or process efficiency. METHODS: A Health Care Failure Mode and Effect Analysis was conducted. Failure modes (FM) were identified. For each FM, a probability to occur and severity of impact on patient safety and process efficiency was determined, and a hazard score (probability X severity) was calculated. For any hazard score considered high risk, root causes were identified, and mitigations were sought. RESULTS: The OZ consists of six major processes: 1) patient transported by ambulance, 2) arrival to the ED, 3) transfer of patient care, 4) patient assessment in OZ, 5) patient care in OZ, and 6) patient transfer out of OZ; 78 FM were identified, of which 28 (35.9%) were deemed high risk and classified as impact on patient safety (n=7/28, 25.0%), process efficiency (n=10/28, 35.7%), or both (n=11/28, 39.3%). Seventeen mitigations were suggested. CONCLUSION: This process map and hazard analysis is a first step in understanding the safety and efficiency of the OZ. The results from this study will inform current policy and practice, and future work to reduce offload delay.

The Epidemiology of Prehospital Emergency Responses for Older Adults in a Provincial EMS System.

OBJECTIVES: Societal aging is expected to impact the use of emergency medical services (EMS). Older adults are known as high users of EMS. Our primary objective was to quantify the rate of EMS use by older adults in a Canadian provincial EMS system. Our secondary objective was to compare those transported to those not transported. METHODS: We analysed data from a provincial EMS database for emergency responses between January 1, 2010 and December 31, 2010 and included all older adults (≥65 years) requesting EMS for an emergency call. We described EMS use in relation to age, sex, and resources. RESULTS: There were 30,653 emergency responses for older adults in 2010, representing close to 50% of the emergency call volume and an overall response rate of 202.8 responses per 1,000 population 65 years and older. The mean age was 79.9±8.5 years for those 57.3% who were female. The median paramedic-determined Canadian Triage and Acuity Scale (CTAS) score was 3 and the mean on-scene time was 24.2 minutes. Non-transported calls (12.3%) for the elderly involved predominantly (54.9%) female patients of similar mean age (78.3 years) but lower acuity (CTAS 5) and longer average on-scene times (32.6 minutes). CONCLUSIONS: We confirmed the increasingly high rate of EMS use with age to be consistent with other industrialized populations. The low-priority and non-transport calls by older adults consumed considerable resources in this provincial system and might be the areas most malleable to meet the challenges facing EMS systems.