Emergency Medical Unit Research Articles

Chapter 26 - Posterior reversible encephalopathy in the intensive care unit

Posterior reversible encephalopathy syndrome (PRES) is increasingly diagnosed in the emergency department, and medical and surgical intensive care units. PRES is characterized by acute onset of neurologic symptoms in the setting of blood pressure fluctuations, eclampsia, autoimmune disease, transplantation, renal failure, or exposure to immunosuppressive or cytotoxic drugs, triggers known to admit patients to the intensive care unit (ICU). Although the exact pathophysiology remains unknown, there is growing consensus that PRES results from endothelial dysfunction. Because of the heterogeneous nature of the disorder, it is probable that different mechanisms of endothelial injury are etiologically important in different clinical situations. The presence of bilateral vasogenic edema on brain imaging, particularly in parieto-occipital regions, is of great diagnostic utility but PRES remains a clinical diagnosis. Although largely reversible, PRES can result in irreversible neurologic injury and even death. The range of clinical and radiographic manifestations of the syndrome is probably broader than previously thought, and it is imperative that clinicians become familiar with the full spectrum of the disorder, as prompt recognition and elimination of an inciting factor improve outcome. PRES may be the most frequent toxic-metabolic encephalopathy seen in the ICU.

Antioxidant therapy in patients with severe aluminum phosphide poisoning: A pilot study

Background:N-acetyl cysteine (NAC) is a powerful antioxidant and has been used extensively in the treatment of paracetamol overdose with great success. Aluminum phosphide (ALP) ingestion results in significant oxidative stress. In this study, we evaluated the effects of NAC on mortality in patients with severe ALP poisoning.Subjects and Methods:This prospective intervention study was carried out in the emergency medical unit attached to the Nehru Hospital at PGIMER, Chandigarh, over a period of 1 year. All the patients presenting with severe ALP poisoning were randomized into two group. The treatment group received NAC in the dose of 150 mg/kg intravenous over 1 h, followed by 50 mg/kg over 4 h, followed by 100 mg/kg 16 h in 5% dextrose. The placebo group received 5% dextrose. The primary end point was mortality.Results:A total of 50 patients were recruited. The baseline parameters were comparable in both groups. The survivors in the treatment group received 19 g of NAC, but the nonsurvivors received only 12.15 g of NAC. The overall mortality in the study group was 88% with 87.5% mortality in the treatment group and 88.5% in the placebo group.Conclusions:Antioxidant therapy in the form of NAC in severe ALP poisoning did not confer any survival benefit.

Acceptance model of a Hospital Information System

PurposeThe purpose of this study is to develop a model of Hospital Information System (HIS) user acceptance focusing on human, technological, and organizational characteristics for supporting government eHealth programs. This model was then tested to see which hospital type in Indonesia would benefit from the model to resolve problems related to HIS user acceptance. MethodThis study used qualitative and quantitative approaches with case studies at four privately owned hospitals and three government-owned hospitals, which are general hospitals in Indonesia. The respondents involved in this study are low-level and mid-level hospital management officers, doctors, nurses, and administrative staff who work at medical record, inpatient, outpatient, emergency, pharmacy, and information technology units. Data was processed using Structural Equation Modeling (SEM) and AMOS 21.0. ResultsThe study concludes that non-technological factors, such as human characteristics (i.e. compatibility, information security expectancy, and self-efficacy), and organizational characteristics (i.e. management support, facilitating conditions, and user involvement) which have level of significance of p<0.05, significantly influenced users’ opinions of both the ease of use and the benefits of the HIS. This study found that different factors may affect the acceptance of each user in each type of hospital regarding the use of HIS. Finally, this model is best suited for government-owned hospitals. ConclusionsBased on the results of this study, hospital management and IT developers should have more understanding on the non-technological factors to better plan for HIS implementation. Support from management is critical to the sustainability of HIS implementation to ensure HIS is easy to use and provides benefits to the users as well as hospitals. Finally, this study could assist hospital management and IT developers, as well as researchers, to understand the obstacles faced by hospitals in implementing HIS.

Risk factors for unsuccessful lumbar puncture in children : research

Background. This descriptive study provides the first information on an association between the use of sedation and a reduction in the prevalence of unsuccessful lumbar puncture (LP) in African children of all races. Objective. Our hypothesis was that children who do not receive any procedural sedation are more likely to have unsuccessful LPs. Methods. A cross-sectional observational study examined LPs performed from February to April 2013, including details of the procedure, sedation or analgesia used, and techniques. The setting was the Medical Emergency Unit at Red Cross War Memorial Children's Hospital, Cape Town, South Africa, and the participants all children aged 0 - 13 years who had an LP in the unit during the time period. Results. Of 350 children, 62.9% were <12 months of age, the median age being 4.8 months (interquartile range 1.5 - 21.7). The prevalence of unsuccessful (traumatic or dry) LP was 32.3% (113/350). Sedation was used in 107 children (30.6%) and was associated with a reduction in the likelihood of unsuccessful LP (p=0.002; risk ratio (RR) 0.5 (95% confidence interval (CI) 0.34 - 0.78)) except in those <3 months of age, where sedation did not significantly reduce the likelihood (p=0.56; RR 1.20 (95% CI 0.66 - 2.18)). Conclusions. Unsuccessful LP was common. Sedation was not routinely used, but the results suggest that it may be associated with a reduction in the rate of unsuccessful LP. Unsuccessful LP may lead to diagnostic uncertainty, prolonged hospitalisation and unnecessary antibiotic use. Whether a procedural sedation protocol would reduce the rate of unsuccessful LP requires further study.

Risk factors for unsuccessful lumbar puncture in children.

This descriptive study provides the first information on an association between the use of sedation and a reduction in the prevalence of unsuccessful lumbar puncture (LP) in African children of all races. Our hypothesis was that children who do not receive any procedural sedation are more likely to have unsuccessful LPs. A cross-sectional observational study examined LPs performed from February to April 2013, including details of the procedure, sedation or analgesia used, and techniques. The setting was the Medical Emergency Unit at Red Cross War Memorial Children's Hospital, Cape Town, South Africa, and the participants all children aged 0 - 13 years who had an LP in the unit during the time period. Of 350 children, 62.9% were &lt;12 months of age, the median age being 4.8 months (interquartile range 1.5 - 21.7). The prevalence of unsuccessful (traumatic or dry) LP was 32.3% (113/350). Sedation was used in 107 children (30.6%) and was associated with a reduction in the likelihood of unsuccessful LP (p=0.002; risk ratio (RR) 0.5 (95% confidence interval (CI) 0.34 - 0.78)) except in those &lt;3 months of age, where sedation did not significantly reduce the likelihood (p=0.56; RR 1.20 (95% CI 0.66 - 2.18)). Unsuccessful LP was common. Sedation was not routinely used, but the results suggest that it may be associated with a reduction in the rate of unsuccessful LP. Unsuccessful LP may lead to diagnostic uncertainty, prolonged hospitalisation and unnecessary antibiotic use. Whether a procedural sedation protocol would reduce the rate of unsuccessful LP requires further study.

Improving the quality of care for children with wheeze: The use of electronic asthma action plans and electronic pre-school wheeze action plans.

To measure the long-term improvement in the documented provision of an asthma action plan (AAP) to children with asthma and wheeze discharged from the Emergency Department following the introduction of the electronic AAP (eAAP) and to determine the need for an electronic pre-school wheeze action plan in our population. A retrospective case note review, from July 2014 to June 2015, of all patients over 12 months old discharged from the Emergency Department or Emergency Medical Unit, with a discharge diagnosis of either asthma or wheeze. The primary outcome was the documentation of an AAP, either recorded electronically as an eAAP or a report of an AAP as part of the patient medical record. Two thousand three hundred and forty-two patients were included in the study, 926 with asthma and 1416 with wheeze. The median age was 3.3 years (interquartile range (IQR) 3.5, range 1-15.9 years). The median age of the children with asthma was 5.3 years (IQR 4.6) and of the children with wheeze was 2.5 years (IQR 2.0).Overall, 1683 (71.9%) children had a documented AAP, with a significant difference between those with a discharge diagnosis of asthma (85.9%) compared with wheeze (62.9%), P < 0.001. These results justified the design of the electronic pre-school wheeze action plan. The integration of an eAAP into the Emergency Department has resulted in a sustained improvement in the documented provision of an AAP to children with a discharge diagnosis of asthma. Children with a discharge diagnosis of wheeze are significantly less likely to receive an action plan.

Delay in medical emergency care to patients with psychiatric symptoms

Patients with mental illness not only have a higher prevalence of physical disorders compared with the general population, but are also less likely to receive proper medical care. We report a case of a 62-year-old woman who was hospitalized in our psychiatry hospitalization unit due to behavioural disturbances and mild psychotic symptoms. During hospitalization, she presented a syncope with an important drop in oxygen saturation requiring continuous oxygen administration to maintain an adequate saturation. As our unit is placed in a monographic psychiatry hospital, she is derived to the medical emergency unit of a local general hospital for attention. Due to her behavioral symptoms, she was difficult to treat in the emergency department, which resulted in an approximate delay of five to six hours. Intervention of the psychiatry emergency team was necessary to encourage the general medical team to perform a full clinical examination, being finally diagnosed with bilateral pulmonary embolism and admitted to a general medicine hospitalization unit. We review related literature regarding the delay in medical care for psychiatric patients. Patients with mental disorders are likely to not receive proper medial care. Programs addressing stigmatization of patients with mental disorders among physicians and a better coordination between medical and psychiatry emergency teams are some of the solutions proposed to address this problem.

Diagnosis, monitoring and management of immune-related adverse drug reactions of anti-PD-1 antibody therapy.

PD-1 checkpoint inhibitors are associated with a specific spectrum of immune-related adverse events. This spectrum is different from toxicities known for kinase inhibitors or cytotoxic drugs. Since PD-1 directed therapies show effectivity in an increasing number of malignant diseases, their clinical usage will increase rapidly. Therefore clinicians from different specialities such as medical oncology, internal medicine, family doctors and emergency unit staff should be aware of the adverse effects of PD-1 checkpoint inhibitors to avoid delays in diagnosis and treatment. Based on pooled data from pivotal trials as reported by the European Medicines Agency, the present paper reviews incidences and kinetics of onset and resolution of immune-mediated "adverse events of specific interest" (AEOSI) of both approved PD-1 inhibitors nivolumab and pembrolizumab. In general, the severity of AEOSI is mild to moderate (grade 1-2); the frequency of immune-mediated but also idiopathic grade 3-4 adverse drug reactions is ⩽2% for any event term. Recommendations for the diagnosis, monitoring and management of the relevant dermatological, gastrointestinal, pulmonary, endocrine, renal and hepatic toxicities are convened by an expert panel that consolidated and clarified treatment recommendations after the onset of AEOSI. Although the time of onset is not predictable - the medians range from 1 to 6months - the huge majority of events is reversible, with no impact of the time of onset. By the systemic use of glucocorticoids, notably methylprednisolone or equivalents, most AEOSI are well manageable. Non-steroidal immunosuppressants may be used in certain cases of refractory/recalcitrant, long-lasting immune toxicities. With regard to the outstanding clinical activity of the anti-PD-1 antibodies, therapy restart is the principal therapeutic option after recovery of grade 2 AEOSI, or diminution of higher grade skin or endocrine events to mild severity. Early diagnosis and close clinical monitoring are essential for successful management of immune-related adverse events.

MR-proANP, MR-proADM, and PCT in Patients Presenting with Acute Dyspnea in a Medical Emergency Unit.

The evaluation of the role of novel biomarkers in the management of cardiac and pulmonary conditions has received particular attention in recent years. A further particular perspective is the use of biomarker panels in the evaluation of patients presenting with acute dyspnea. We prospectively evaluated three biomarkers (MR-proANP, PCT, and MR-proADM) in consecutive patients presenting with acute dyspnea in a medical emergency unit during a 4-week period. Patients received a final diagnosis. Biomarkers were tested for their potential to predict diagnoses and survival. No intervention was done. Overall, n=172 patients were included. Of these, 32.6% had acute heart failure, 16.9% pneumonia, and 5.8% died. MR-proANP was the highest in patients with acute heart failure and lung embolism. Dyspnea scores and levels of MR-pro-ANP correlated positively. MR-proANP achieved an AUC of 0.83 for the diagnosis of acute heart failure. Using a cut-off of 120pmol/l, sensitivity was 91.1% and specificity 50%. PPV was 46.8% and NPV 92.1%. In patients with MR-proANP >300pmol/l, PPV raised to 67.3%. MR-proADM had an AUC of 0.84 for the prediction of death. PPV was 16% and NPV 98.4%. The AUC of PCT was 0.74 for the diagnosis of pneumonia. Using a cut-off of 0.25ng/ml, PCT had a sensitivity of 44.8% and a specificity of 85.3%. PPV was 38.2 and NPV 88.4%. Using a lower cut-off of <0.1ng/ml, NPV reached 92.9%. A panel of three biomarkers (MR-proANP, PCT, and MR-proADM) in patients presenting to the emergency unit with acute dyspnea provides information about the probability of acute heart failure, nonsurvival, and pneumonia. These biomarkers achieve low to moderate positive predictive values (PPV) and high negative predictive values (NPV).

Analysis of emergency vascular surgery consults within a tertiary health care system

Patients with vascular disease often have multisystem atherosclerosis and multiple comorbidities requiring comprehensive interdisciplinary specialty care. Consultation is a critical component of a tertiary vascular surgery practice, but analysis of this service is under-reported in the literature. After-hours inpatient consultations and interhospital transfers are associated with urgent patient care. A retrospective analysis of vascular surgery consultations was carried out from January 1, 2013, to December 31, 2013. Consultations included inpatient services, the emergency department, surgical and medical intensive care unit, and interhospital transfers. Data analysis included number of consults, time of consultation (during hours, 0700-1859; after hours, 1900-0659), referring service, nature, and outcome of consultation. Consultations were then classified as urgent if vascular surgical intervention was required as an intraoperative consultation, within 24 hours, or during the same hospitalization. Patients without a same-hospital vascular surgical intervention were classified as nonurgent. During a 1-year period, 823 independent consult requests of 749 patients were analyzed. It was found that 57.8% of after-hours consults resulted in urgent patient care (P = .003); 29.7% of medicine, 33.3% of medical intensive care unit, 41.9% of trauma surgery, and 60% of emergency department after-hours consultations were urgent; 73% of surgery and 79.2% of interhospital after-hours consults required urgent vascular surgical intervention. Extremity ischemia, aortic disease, and iatrogenic consults accounted for 44.8%, 20.4%, and 11.1% of after-hours consults, with 57.9%, 56.4%, and 70% requiring urgent vascular surgical intervention, respectively. After-hours consultations are not always associated with an urgent vascular surgical intervention. Nonurgent after-hours consultations are requested more frequently from some services and may present an opportunity for education that could improve workflow of the vascular workforce.

CEOs Meet to Discuss Ways to Foster Workplace MH

CEOs Meet to Discuss Ways to Foster Workplace MH

Improvements in the management of neutropenic sepsis: lessons learned from a district general hospital

Neutropenic sepsis is a life-threatening condition with mortality rates reported to range between 2 and 21% in adults. It can occur following chemotherapy treatment, due to disease (such as haematological conditions affecting the bone marrow) and in patients on disease-modifying agents (such as patients receiving methotrexate for rheumatoid arthritis). Appropriate emergency treatment is essential and achieving intravenous antibiotic door-to-needle time of less than 1hour is a key target. Shortfalls in the management of patients presenting to teams with limited expertise in this area were identified in the National Confidential Enquiry into Patient Outcome and Death report in 2008, leading to recommendations including the need for an acute oncology service (AOS) at all hospitals with either an emergency department or medical admissions unit. Practice at Weston General Hospital has been audited at three time points since 2008 (in 2008, 2011 and 2013-14) during which there have been several service developments relevant to the management of neutropenic sepsis, including the introduction of an AOS in June 2013. The percentage of patients in which intravenous antibiotic 1-hour door-to-needle time was achieved has improved from 14% (2008) to 31% (2011) to 79% (2013-14) and neutropenic sepsis mortality has decreased from 39% (2008) to 14% (2011) to 0% (2013-14).

Evolution of the interventional reperfusion strategy and reperfusion times in acute ST-segment elevation myocardial infarction

In patients with acute ST-segment elevation myocardial infarction (STEMI) treated with primary percutaneous coronary intervention (pPCI), the recommended times (first medical contact-to-balloon (M2B) < 120 min or < 90 min, and door-to-balloon (D2B) < 45 min) are reached in less than 50% of patients. To compare the interventional reperfusion strategy and reperfusion times between two series of consecutive STEMI patients referred for pPCI within 12 hours of symptom onset, in 2007 and 2012. Retrospective study of 182 patients, 87 admitted from January 2007 to March 2008 (period 1), and 95 admitted from January to December 2012 (period 2). The procedural characteristics and the different times between onset of pain and mechanical reperfusion were gathered and compared by non-parametric tests. Radial access, thrombo aspiration, and drug eluting stents were more frequent, and cardiogenic shock was less common during period 2, compared with the period 1. The median time from first medical contact and balloon (M2B) decreased by 26% (135 min, quartiles [113–183] in 2007 versus 100 [76–137] in 2012, P < 0.001), in relation to the reduction in both pre-hospital times and time in the catheterization laboratory (D2B 51 [44–65] and 44 min [37–55], respectively, P < 0.01). The D2B and M2B times significantly decreased in our centre between 2007 and 2012, and reached the recommended values in > 60% of the cases. This may be explained by better coordination between emergency medical units and interventional cardiologists, and by the presence of two paramedics in the cath lab for 24/24 7/7 pPCI since 2010 in France, in accordance with recent national regulation.

Évolution de la prise en charge interventionnelle et des délais de reperfusion à la phase aiguë de l’infarctus du myocarde avec sus-décalage du segment ST

BackgroundIn patients with acute ST-segment elevation myocardial infarction (STEMI) treated with primary percutaneous coronary intervention (pPCI), the recommended times (first medical contact-to-balloon (M2B) <120 or <90min, and door-to-balloon (D2B) <45min) are reached in less than 50% of patients. PurposeTo compare the interventional reperfusion strategy and reperfusion times between two series of consecutive STEMI patients referred for pPCI within 12hours of symptom onset, in 2007 and 2012. MethodsRetrospective study of 182 patients, 87 admitted from January 2007 to March 2008 (period 1), and 95 admitted from January to December 2012 (period 2). The procedural characteristics and the different times between onset of pain and mechanical reperfusion were gathered and compared by non-parametric tests. ResultsRadial access, thromboaspiration, and drug eluting stents were more frequent, and cardiogenic shock was less common during period 2, compared with the period 1. The median time from first medical contact to balloon (M2B) decreased by 26% (135min, [quartiles: 113–183] in 2007 versus 100 [76–137] in 2012, P<0.001), in relation to the reduction in both prehospital times and time in the catheterization laboratory (D2B: 51 [44–65] and 44min [37–55], respectively, P<0.01). ConclusionsThe D2B and M2B times significantly decreased in our centre between 2007 and 2012, and reached the recommended values in >60% of the cases. This may be explained by better coordination between emergency medical units and interventional cardiologists, and by the presence of two paramedics in the catheterization laboratory for 24/24 7/7 pPCI since 2010 in France, in accordance with recent national regulation.

Acute alcohol toxicity and withdrawal in the emergency room and medical admissions unit

Alcohol-related hospital attendances and admissions continue to escalate despite a fall in alcohol consumption levels in the UK population overall. People with alcohol-related problems pose a significant and often disproportionate burden on acute medical services as their management is often complex and challenging. This article focuses on the management of alcohol intoxication, with particular emphasis on aggressive and possibly violent behaviour; alcohol withdrawal; fitting; and the prevention and treatment of Wernicke's encephalopathy.

Acute kidney injury risk assessment at the hospital front door: what is the best measure of risk?

BackgroundWe examined the prevalence of acute kidney injury (AKI) risk factors in the emergency medical unit, generated a modified risk assessment tool and tested its ability to predict AKI.MethodsA total of 1196 patients admitted to medical admission units were assessed for patient-associated AKI risk factors. Subsequently, 898 patients were assessed for a limited number of fixed risk factors with the addition of hypotension and sepsis. This was correlated to AKI episodes.ResultsIn the first cohort, the prevalence of AKI risk factors was 2.1 ± 2.0 per patient, with a positive relationship between age and the number of risk factors and a higher number of risk factors in patients ≥65 years. In the second cohort, 12.3% presented with or developed AKI. Patients with AKI were older and had a higher number of AKI risk factors. In the AKI cohort, 72% of the patients had two or more AKI risk factors compared with 43% of the cohort with no AKI. When age ≥65 years was added as an independent risk factor, 84% of those with AKI had two or more AKI risk factors compared with 55% of those with no AKI. Receiver operating characteristic analysis suggests that the use of common patient-associated known AKI risk factors performs no better than age alone as a predictor of AKI.ConclusionsDetailed assessment of well-established patient-associated AKI risk factors may not facilitate clinicians to apportion risk. This suggests that additional work is required to develop a more sensitive validated AKI-predictive tool that would be useful in this clinical setting.

A quality improvement project to decrease emergency department and medical intensive care unit transfer times

ObjectiveTo reduce transfer time of critically ill patients from the emergency department (ED) to the medical intensive care unit (MICU). DesignA prospective, observational study assessing preimplementation and postimplementation of quality improvement interventions in a tertiary academic medical center. InterventionsA team of frontline health care professional including ED, MICU, and supporting services using the clinical microsystems approach mapped out existing practice patterns, determined causes for delays, and used the Plan-Do-Study-Act to test changes.Measurements and Main ResultsThe team identified multiple issues that contributed to delays. These included poor coordination between transport services, respiratory therapy, and nursing in transferring patients from the ED as well delays in identification and transfer of stable MICU patients. These interventions reduced transfer time from 4.2 (3.4-5.7) hours to 2.2 (1.4-3.1) hours (median [interquartile range]; P < .001). Hospital length of stay decreased from 9.9 ± 9 to 8.3 ± 7 days (P < .03). ConclusionA team made up of frontline health care professionals using a structured quality improvement process and implementing multifaceted, multistage interventions, reduced transfer delays, and length of stay. Added benefits included engagement among members of the 2 microsystems and a more cohesive approach to patient care.

Effect of an Educational Program on Nurses’Knowledge and Practice Regarding management of Diabetic Crisis in the Emergency Medical Unit at Assiut University Hospital.

Abstract Diabetic crisis is life threatening complications of Diabetes mellitus . The nurse plays a vital role in the efforts to resuscitate these types of patients., the nursing staff are in need for continuous education. the Aim of the present study was to evaluate the effect of implementing an educational program on knowledge and practice of critical care nurses regarding diabetic crisis .Method A convenient sample of all nurses working in the Emergency Medical Unit at Assuit university hospital .A structured interview questionnaire sheet and observational check list tools used to collect the data .Results the present study revealed that total scores of the nurses’ knowledge and practice were improved from a pre-program level of (18.060±3.76)for knowledge and( 20.08±0.34)for practice to an immediate post of (49.766±2.99)for knowledge and (44.7±0.05)for practice. However the mean scores of total knowledge and practice have decline in the follow up phase ,it still statically significant higher than the pre –program level Conclusion The educational program for nurses was significantly upgrading their knowledge and practice concerning diabetic crisis . Recommendation -Orientation program should be utilized for newly graduated nurses. Nurses in these types of units should upgrading their knowledge and practice through frequent attending seminars, and conferences.

The role of unregistered healthcare workers in preventing readmission to hospital: a systematic review protocol

The role of unregistered healthcare workers in preventing readmission to hospital: a systematic review protocol

Situational awareness and information flow in prehospital emergency medical care from the perspective of paramedic field supervisors: a scenario-based study.

BackgroundIn prehospital emergency medical services, one of the key factors in the successful delivery of appropriate care is the efficient management and supervision of the area’s emergency medical services units. Paramedic field supervisors have an important role in this task. One of the key factors in the daily work of paramedic field supervisors is ensuring that they have enough of the right type of information when co-operating with other authorities and making decisions. However, a gap in information sharing still exists especially due to information overload. The aim of this study was to find out what type of critical information paramedic field supervisors need during multi-authority missions in order to manage their emergency medical services area successfully. The study also investigated both the flow of information, and interactions with the paramedic field supervisors and the differences that occur depending on the incident type.MethodsTen paramedic field supervisors from four Finnish rescue departments participated in the study in January–March 2012. The data were collected using semi-structured interviews based on three progressive real-life scenarios and a questionnaire. Data were analysed using deductive content analysis. Data management and analysis were performed using Atlas.ti 7 software.ResultsFive critical information categories were formulated: Incident data, Mission status, Area status, Safety at work, and Tactics. Each category’s importance varied depending on the incident and on whether it was about information needed or information delivered by the paramedic field supervisors. The main communication equipment used to receive information was the authority radio network (TETRA). However, when delivering information, mobile phones and TETRA were of equal importance. Paramedic field supervisors needed more information relating to area status.ConclusionsParamedic field supervisors communicate actively with EMS units and other authorities such as Emergency Medical Dispatch, police, and rescue services during the multi-authority incidents. This study provides knowledge about the critical information categories when receiving and sharing the information to obtain and maintain situational awareness. However, further research is needed to examine more the information flow in prehospital emergency care to enable a better understanding of required communication in situational awareness formation.