Skip Navigation U.S. Department of Health and Human Services
Agency for Healthcare Research Quality
Archive print banner
Emergency Preparedness Resource Inventory (EPRI): User's Manual

Public Health Emergency Preparedness

This resource was part of AHRQ's Public Health Emergency Preparedness program, which was discontinued on June 30, 2011, in a realignment of Federal efforts.

This information is for reference purposes only. It was current when produced and may now be outdated. Archive material is no longer maintained, and some links may not work. Persons with disabilities having difficulty accessing this information should contact us at: Let us know the nature of the problem, the Web address of what you want, and your contact information.

Please go to for current information.

Chapter 4: Reference

AHRQ Hospital Surge Model

The AHRQ Hospital Surge Model estimates the hospital resources (personnel, equipment, and supplies) required to treat victims of disasters and other emergencies, including biological, chemical, radiological, and conventional attacks. The estimates are based on a user-specified number and type of casualties presenting at hospitals.

The Surge Model is available at The web site includes documentation that explains important Surge Model assumptions. Funding and leadership to support the Hospital Surge Model were provided by the U.S. Department of Health and Human Services' Office of the Assistant Secretary for Preparedness and Response through an Agency for Healthcare Research and Quality contract with Abt Associates.

EPRI comes pre-loaded with eight Resource Groups that correspond to Surge Model scenarios:

EPRI Resource Group Surge Model Scenarios
Anthrax Incident Resources Anthrax
Botulinum Incident Resources Botulinum
Chemical Incident Resources Chlorine
IED Incident Resources IED (Improvised Explosive Device)
Pandemic Flu Incident Resources Pandemic Flu (H5N1 variety)
Plague Incident Resources Plague
Radiological Incident Resources Nuclear Explosion
Radiological Dispersion Device
Radiological Point Source
Smallpox Incident Resources Smallpox

The number of resources in these eight Resource Groups ranges from 30 to 100, and includes resources that are important for treating casualties from the particular attack.

The resource requirements that the Surge Model estimates can be compared to available resources inventoried in EPRI to identify gaps, which in turn can inform purchasing, grant writing, and resource sharing decisions.

Return to Contents

Emergency Request

An emergency request is a request for information about a specific set of resources that is sent to a specific set of locations. More specifically, an emergency request is sent to a specific Location Group for information about a specific Resource Group. In contrast to "inventory," an emergency request focuses on immediate or short-term resource availability or resource needs.

Return to Contents


Within EPRI, a location is either (1) a physical location where resources are maintained or (2) the name of an agency or organization that owns, is responsible for, or controls access to resources. The EPRI Administrator creates locations in EPRI, as part of the setup and customization process.

Return to Contents

Location Group

A Location Group is a collection of one or more locations. A Location Group must be specified when an EPRI inventory report is run or when an emergency request for information is made.

You can see a list of Location Groups that have been created by running the "Location Group Listing" report under the Reports keyword.

EPRI Administrators can create Location Groups for other EPRI users. In addition, EPRI users who can either run an inventory report or create a new emergency request can create a Location Group "on the fly" when running the report or creating the request. Both the form for building an inventory report and the form for creating an emergency request have an option to create a new location group (go to Chapter 2, Resource Inventory Reports, for more information).

Return to Contents

Location Type

Location Type is an attribute of a location that categorizes the location. Hospitals, Health Departments, Emergency Management Agencies, and Schools are examples of Location Types.

Return to Contents


An organization is an EPRI construct whose primary purpose is to determine the locations for which EPRI users can enter inventory data.

Each EPRI location belongs to an organization. In addition, each EPRI user belongs to an organization, which is specified when the user is created. An EPRI user with either the data entry or data manager role for an organization has the ability to enter and update the inventory for only those locations that belong to that organization.

Return to Contents


A resource, in EPRI, is a type of item - such as a particular type of equipment (e.g., an adult ventilator), vehicle (e.g., Type I, Fixed-Wing Air Ambulance), staff position (e.g., a Registered Nurse), or a team of individuals (Type I Mobile Field Medical Team) - that is being tracked in EPRI. A resource does not refer to a specific piece of equipment (e.g., the ventilator with serial number 123456789) or a specific person (e.g., Jane Doe).

Tip: You can print a listing of all Resources by clicking "Resource Listing" on the Reports page.
  • EPRI comes pre-loaded with resources included in the HAvBED system1 and resources used in the AHRQ Surge Model (go to "AHRQ Surge Model" in Chapter 4).
  • Your EPRI Administrators can also create EPRI resources.

Return to Contents

Resource Group

A Resource Group is a collection of one or more resources. A Resource Group is used in EPRI to create an inventory data entry screen, and must also be specified when an EPRI inventory report is run or when an emergency request for information is made.

EPRI comes pre-loaded with nine Resource Groups:

  • Eight correlate to the resources in the AHRQ Surge Model for different disaster scenario (go to "AHRQ Surge Model" in Chapter 5).
  • The "HAvBED Resource Group" contains the resources included in HHS's HAvBED system.2
Tip: You can print a list of all the resources in each Resource Group by running the "Resource Group Listing" report on the Reports page.

Return to Contents

Resource Type

Resource Types are sets of similar resources. The resources that come pre-loaded with EPRI (go to "Resource", above) have been categorized into four different Resource Types:

  • Hospital Beds.
  • Hospital Equipment.
  • Hospital Personnel.
  • Hospital Supplies.

EPRI Administrators can create new Resource Types, as desired.

Return to Contents

AHRQ Publication No. 11-0061-1-EF
Current as of April 2011

1Go to
2Go to


The information on this page is archived and provided for reference purposes only.


AHRQ Advancing Excellence in Health Care