Back To Search Results

Emergency Preparedness

Editor: David M. Gnugnoli Updated: 12/1/2025 3:27:41 AM

Definition/Introduction

Emergency preparedness encompasses systematic risk assessment, strategic resource allocation, and interprofessional coordination aimed at mitigating disaster impact while optimizing response and recovery. The United Nations Office for Disaster Risk Reduction defines a disaster as a serious disruption of community functioning at any scale resulting from hazardous events interacting with conditions of exposure, vulnerability, and capacity, producing human, material, economic, or environmental losses and impacts. (Source: United Nations Office for Disaster Risk Reduction, 2017)

The term "disaster" denotes an event characterized by unexpected occurrence, severity, and immediate threat to public health.[1] The term "emergency" is sometimes used interchangeably with disaster, particularly in the context of biological, technological, or health hazards, although emergencies may also describe hazardous events that do not severely disrupt community or societal functioning.

"Disaster damage" refers to losses sustained during or immediately after a disaster, typically quantified in physical terms, such as housing area destroyed or roads damaged, and encompassing infrastructure destruction, disruption of essential services, and harm to livelihoods. "Disaster impact" encompasses the overall consequences of a hazardous event, including negative effects such as economic losses, injuries, and deaths, as well as potential positive outcomes such as economic gains, with effects spanning economic, human, and environmental domains and extending to physical, mental, and social well-being.

Disaster Types

Classification of disasters into distinct types provides a framework for assessing risk and tailoring preparedness measures. An accurate definition of disaster categories enables more effective coordination of response and recovery efforts.

Natural disasters are ecological disturbances or hazards that exceed the adaptive capacity of affected communities. Examples include wildfires, major floods, hurricanes, and earthquakes.[2] Man-made disasters are directly attributable to human actions and encompass armed conflict, severe environmental pollution, bioterrorist attacks such as anthrax release, large-scale technological failures, and terrorist events such as the September 11, 2001 attacks. (Source: Guha-Sapir; Landesman ed., 2000)

Small-scale disasters affect local communities but necessitate external assistance when community resources are insufficient. Large-scale disasters involve broader populations and demand coordinated national or international response efforts.

Disasters may be classified as internal or external, and these categories can occur simultaneously, as in natural disasters that produce mass casualties while also damaging hospital infrastructure. Internal disasters are events that occur within the hospital setting, including active shooter incidents, power outages, cyberattacks targeting electronic health records, and radiation exposure.[3] External disasters take place outside the hospital, such as transportation accidents or industrial incidents.

Acute disasters create a sudden surge of low-acuity patients that rapidly exceed hospital surge capacity, typically followed by additional patients arriving by personal transport and later by critically ill patients transported through emergency medical services or other prehospital systems. Peak patient volumes often present 2 to 3 hours after the precipitating event. Evolving disasters, including infectious disease pandemics such as COVID-19 and Ebola, progress gradually and impose prolonged demands on resources, resulting in sustained operational strain. Preparedness denotes a structured state of readiness for environmental threats, achieved through comprehensive emergency planning processes.[4]

Issues of Concern

Register For Free And Read The Full Article
Get the answers you need instantly with the StatPearls Clinical Decision Support tool. StatPearls spent the last decade developing the largest and most updated Point-of Care resource ever developed. Earn CME/CE by searching and reading articles.
  • Dropdown arrow Search engine and full access to all medical articles
  • Dropdown arrow 10 free questions in your specialty
  • Dropdown arrow Free CME/CE Activities
  • Dropdown arrow Free daily question in your email
  • Dropdown arrow Save favorite articles to your dashboard
  • Dropdown arrow Emails offering discounts

Learn more about a Subscription to StatPearls Point-of-Care

Issues of Concern

Guidelines for Emergency Planning

The guidelines below constitute a key resource for professionals engaged in disaster planning. These principles support evidence-based decision-making and facilitate adaptability during disaster operations.

Accurate characterization of hazards requires knowledge of the threat, analysis of vulnerability, and assessment of likely human responses. Continuous threat assessment is essential and must be sustained even during periods of disaster impact. The SMAUG model provides a structured framework for prioritizing disaster-related risks, incorporating 5 criteria: seriousness, manageability, acceptability, urgency, and growth. Hazards are rated as high, medium, or low across these dimensions. Seriousness reflects potential impact, including financial losses and risk to life. Manageability evaluates the capacity to mitigate or control the hazard. Acceptability considers the extent to which consequences are tolerable to stakeholders. Urgency addresses the immediacy of required action. Growth estimates the likelihood that the hazard’s probability or impact will increase over time.[5]

Emergency managers should undertake appropriate actions. Within the context of disaster operations, planning is often associated with the facilitation of rapid response, but timeliness alone is insufficient, as the appropriateness of the response carries greater significance than its speed. Core response principles should be prioritized over excessive detail, since overly specific plans can cause all emergency functions to appear equally important, obscuring priorities and creating confusion. Plans must be structured to accommodate the realities of disaster operations, with priorities clearly defined and operational details limited to preserve flexibility. (Sources: Carter, 1991; Tierney et al, 2001)

Emergency planning must incorporate interorganizational coordination, involving emergency managers, law enforcement, healthcare systems, public health agencies, the military, and other stakeholders whose expertise is essential for managing diverse threats. (Source: Perry; Drabek and Hoetmer eds, 1991) The commonality of emergency response functions permits the shared use of personnel, procedures, facilities, and equipment. Although disaster agents differ, many produce similar demands, allowing the same response functions to be applied effectively across multiple hazards. Disaster planning guidelines emphasize the integration of training within preparedness efforts. The planning process extends beyond direct responders to include government agencies responsible for funding, evaluating, and overseeing emergency management programs.

An effective planning process requires systematic testing of proposed response operations. Drills provide an integrated assessment of preparedness by simultaneously evaluating plans, staffing, training, procedures, facilities, equipment, and materials. A defining characteristic of emergency planning is its dynamic and continuous nature, necessitating the incorporation of change across all components of the emergency management system.

Planning often occurs in contexts of conflict and institutional resistance, where regulatory or legislative mandates alone are insufficient to overcome barriers. Successful initiation of planning efforts depends on sustained advocacy and strong leadership.[6] Planning and management remain distinct functions, and the ultimate validity of a plan is demonstrated through its performance during an actual emergency. (Source: Quarantelli et al, 1983) As a core element of preparedness, planning involves systematic identification of community hazards, evaluation of their potential impacts, and delineation of geographic areas at risk.

Emergency Response

The response phase centers on the activation of the disaster plan to address immediate needs. Activities are carried out at the facility, regional, and national levels, with priority given to meeting basic humanitarian requirements and minimizing loss of life. The nature of the disaster largely determines the type of medical care delivered, and coordination between individual facilities and regional systems is critical when local resources become overwhelmed.[7]

In the U.S., the National Response Framework provides a structured approach to disaster response by defining roles and responsibilities at local, state, and federal levels to facilitate coordinated action. Within this context, 2 primary response strategies are commonly employed. Shelter-in-place entails establishing a secure location within the facility and remaining there until conditions are deemed safe. At the facility level, this strategy includes the provision of care to injured individuals using resources that are immediately available. Evacuation involves relocating individuals from the affected facility or region, with equipment and resources either remaining on-site or being transferred to alternate locations depending on the circumstances.

Salvage and Recovery

This phase begins once the immediate threat to human life has been controlled and the initial response has concluded. Subsequent efforts focus on restoring the affected facility or area to normal operations as rapidly as possible. In extreme circumstances, such as prolonged armed conflict or widespread epidemics, salvage and recovery may be severely hindered, resulting in delays that can extend for years.

Clinical Significance

Pediatric Emergency Readiness

Optimal pediatric emergency care requires adequately trained personnel, appropriate equipment, and pediatric-specific policies and protocols. However, many general emergency departments lack sufficient pediatric capability and experience, contributing to substandard care and adverse outcomes. Findings from the National Pediatric Readiness Project demonstrated significant gaps, including the absence of designated pediatric emergency care coordinators and limited pediatric-focused policies and quality improvement initiatives in many general emergency departments. These deficiencies were associated with increased mortality among critically ill and injured children.[8][9]

Preparedness for pediatric emergency care varies across facilities, with higher mortality rates observed in less-prepared institutions. Established guidelines are available to support preparedness in pediatric emergency care. The present study aimed to assess the level of preparedness of emergency departments within our healthcare cluster, using the guidelines of the Royal College of Pediatrics and Child Health and the International Federation for Emergency Medicine as audit benchmarks.[10]

Pediatric disaster preparedness requires an all-hazards approach that addresses the distinctive physical, psychological, and developmental needs of children. Pediatric care providers hold a central role in planning, response, and recovery efforts across diverse healthcare and community settings.

Children present unique challenges in disaster situations because of their distinct anatomy, physiology, and psychological needs, which require tailored approaches to triage and care. Pediatricians and other clinicians caring for children play an essential role in helping families prepare for emergencies and ensuring that both medical and psychological needs are addressed during and after crisis events. Mental health support is a critical component, as providers must recognize and manage disaster-related stress in children and families. Emerging infectious diseases further highlight the need for vigilance, with appropriate recognition, isolation, and safe management of pediatric patients who may present with hazardous infections.

Preparedness is strengthened through pediatric-specific drills, which expose gaps in response and recovery efforts. Specialized knowledge is also required for nuclear and radiological incidents, where accurate diagnosis, effective treatment, and public reassurance are paramount. Biological threats, including potential bioterrorism events, may place pediatricians at the forefront of community response, while chemical emergencies necessitate coordinated action among multiple agencies. In such scenarios, awareness of pediatric-focused decontamination strategies and appropriate protective equipment is essential. The management of physical trauma, including penetrating injuries from explosives and firearms, relies on close integration of emergency medical services and trauma systems to optimize outcomes in affected children. (Source: Chung et al, 2022)

Nursing, Allied Health, and Interprofessional Team Interventions

Strengthening public health emergency preparedness and crisis response requires a proactive, interprofessional approach that integrates policy development, technological advancement, and community-based initiatives. Collaboration among governments, international organizations, healthcare institutions, and communities is essential to establishing crisis response frameworks that are both comprehensive and adaptable. Effective coordination facilitates timely resource mobilization, reliable information exchange, and rapid operational intervention. Public–private partnerships further enhance crisis response by utilizing private sector expertise and resources in domains such as medical supply distribution, vaccine development, and digital health solutions. (Source: Afrihyia et al, 2025)

In the U.S., emergency management is coordinated by the Federal Emergency Management Agency (FEMA), a division of the Department of Homeland Security. Disaster response is initiated at the local level by police, fire, emergency medical services, and facility-based groups. When local capacity is exceeded, responsibility transitions to the state level, with FEMA functioning as a support agency rather than a commanding authority. For coordinated response, FEMA organizes the nation and its territories into 10 regions.

Citizen Corps, a volunteer initiative under the Department of Homeland Security, provides education and training to enhance community-level emergency preparedness. In terrorist-related incidents, the Secretary of Homeland Security activates the National Response Framework, aligning federal, state, and local resources to ensure coordinated management at the lowest effective level. The Centers for Disease Control and Prevention contributes specialized guidance and educational resources for public health emergencies, including infectious disease outbreaks, chemical or radiation exposure, and natural or weather-related disasters.

References


[1]

Gebbie KM, Qureshi K. Emergency and disaster preparedness: core competencies for nurses. The American journal of nursing. 2002 Jan:102(1):46-51     [PubMed PMID: 11839908]


[2]

Yagub AI, Mtshali K. The role of non-governmental organizations in providing curative health services in North Darfur State, Sudan. African health sciences. 2015 Sep:15(3):1049-55. doi: 10.4314/ahs.v15i3.48. Epub     [PubMed PMID: 26958002]


[3]

Metzler EC, Kodali BS, Urman RD, Flanagan HL, Rego MS, Vacanti JC. Strategies to maintain operating room functionality following the complete loss of the recovery room due to an internal disaster. American journal of disaster medicine. 2015 Winter:10(1):5-12. doi: 10.5055/ajdm.2015.0183. Epub     [PubMed PMID: 26102040]


[4]

Perry RW, Lindell MK. Preparedness for emergency response: guidelines for the emergency planning process. Disasters. 2003 Dec:27(4):336-50     [PubMed PMID: 14725091]


[5]

Arnold JL. Risk and risk assessment in health emergency management. Prehospital and disaster medicine. 2005 May-Jun:20(3):143-54     [PubMed PMID: 16018501]


[6]

Quarantelli EL. Social and organisational problems in a major community emergency. The Australasian nurses journal. 1982 Oct:11(9):18-20     [PubMed PMID: 6925967]


[7]

Holloway R, Rasmussen SA, Zaza S, Cox NJ, Jernigan DB. Updated preparedness and response framework for influenza pandemics. MMWR. Recommendations and reports : Morbidity and mortality weekly report. Recommendations and reports. 2014 Sep 26:63(RR-06):1-18     [PubMed PMID: 25254666]


[8]

Gausche-Hill M, Ely M, Schmuhl P, Telford R, Remick KE, Edgerton EA, Olson LM. A national assessment of pediatric readiness of emergency departments. JAMA pediatrics. 2015 Jun:169(6):527-34. doi: 10.1001/jamapediatrics.2015.138. Epub     [PubMed PMID: 25867088]


[9]

Ames SG, Davis BS, Marin JR, Fink EL, Olson LM, Gausche-Hill M, Kahn JM. Emergency Department Pediatric Readiness and Mortality in Critically Ill Children. Pediatrics. 2019 Sep:144(3):. doi: 10.1542/peds.2019-0568. Epub     [PubMed PMID: 31444254]


[10]

Ang PH, Chong SL, Ong YG, Pek JH. Pediatric Preparedness of the Emergency Departments. Pediatric emergency care. 2020 Dec:36(12):602-605. doi: 10.1097/PEC.0000000000002257. Epub     [PubMed PMID: 33086361]