Hospital Response Following a Terrorist Event InvolvingRadioactive Material Medical Response Subcommittee of the Health Physics Society Homeland Security Committee
Introduction This presentation, “Hospital Response Following a Terrorist Event Involving Radioactive Material,” was prepared as a public service by the Medical Response Subcommittee of the Health Physics Society Homeland Security Committee for hospital staff training. The presentation includes talking points on the Notes pages, which can be viewed if you go to the File Menu and "Save As" a PowerPoint file to your computer. The talking points are provided with each slide to assist the presenter in answering questions. It is not expected that all the information in the talking points will be presented during the training. The presentation can be edited to fit the needs of the user. The authors request that that appropriate attribution be given for this material and would like to know who is presenting it and to what groups. That information and comments may be sent to Marcia Hartman, at email@example.com.
Emergency Preparedness • Medical stabilization is the highest priority • Contamination control should not delay critical medical care • Be prepared for multiple hazards, including chemical, radiological and biological • Be prepared for multiple events, e.g. a 1st event followed by 2nd event used to take out first responders • Be prepared for • large numbers of potentially contaminated individuals • large numbers of uninjured and uncontaminated but concerned and frightened individuals
Emergency Preparedness • Triage Goals for Mass Casualty • Evaluate & sort patients by immediacy of treatment • Do the greatest good for the most people • In mass casualty event, may need to deal with thousands of persons in need of contamination and exposure assessment • Pre-plan to ensure adequate supplies and survey instruments are available • Training and drills essential to competence and confidence
Radiological Medical EmergencyResponse Plan • Required by Joint Commission on Accreditation of Healthcare Organizations • EC.4.10 Emergency Management - means for radioactive, biological, and chemical isolation and decontamination • Information available: • Radiation Emergency Assistance Center/ Training Site (REAC/TS) – website and training classes http://orise.orau.gov/reacts/ • NCRP 138, Management of Terrorist Events Involving Radioactive Material • NCRP 111, Developing Radiation Emergency Plans for Academic, Medical or Industrial Facilities
Radiological Medical EmergencyResponse Plan • Interim Guidelines for Hospital Response to Mass Casualties from a Radiological Incident, http://emergency.cdc.gov/radiation/ • Health Physics Society Homeland Security website • Information • Training presentations: "Emergency Department Management of Radiation Casualties " • https://hps.org/hsc/documents/emergency.ppt
Number % of Pop’n Total Population 1,000,000 100 Persons Monitored 112,000 11.2 Persons with External and Internal Doses 249 0.025 Persons Admitted to Hospital 49 0.005 Persons Needing Intensive Medical Care 22 0.002 Deaths 4 0.0004 Forearm Amputated 1 0.0001 Goiânia : Lesson for RDD Preparedness photo credits: IAEA
Mass Casualties, Potentially Contaminated butUninjured Individuals • An incident caused by nuclear terrorism may create large numbers of potentially contaminated people who are not injured and worried people who may not be injured or contaminated. • Measures must be taken to deal effectively with these individuals while preventing them from heading to and overwhelming the emergency department (ED).
Assessment Centers Primary – Hospital Secondary – Community • Triage Site • Medical staff trained in medical radiation emergency procedures, health physicists, medical physicists & other staff trained in decontamination and use of radiation survey meters, psychological counselors and security. • Screen patients for injury and contamination • Treat minor injuries (first aid) • Psychological counseling for staff & victims, as needed • Decontamination Center • Perform decontamination and treatment of non-life threatening injuries
Handling of Mass Casualties Access for Staff, Press, Officials Main Hospital Near ED Area for deceased Access for Self-referred patients Controlled Triage Site Triage for Injury & Contamination Ambulance Traffic Only Serious Injury/Illness Emergency Department • Perform first aid • Perform decontamination Admit patients or treat & discharge Community
Systematic Approach • A systematic approach to handling large numbers of potentially contaminated individuals is necessary. • Such an approach should provide for surveying, mass decontamination, resurveying, advanced decontamination (if necessary), resurveying and additional decontamination or ED care as indicated. • Depending on weather, decontamination sites may have to be established indoors or in a temporary shelter.
Controlled Triage Site • A controlled triage site should be established away from the ED to intercept the large numbers of contaminated people who are not injured and uncontaminated but worried people and divert them to appropriate locations.
Triage Site Control • Control of movement through the site is necessary to minimize the potential for contaminating clean areas of the site. • The triage site should be staffed with medical staff, radiation monitors and security personnel. • Precautions should be taken so that people cannot avoid the triage center and go directly to the ED.
Movement Through the Triage/Decontamination Areas • The path through the triage/decontamination area must be clearly marked and individuals assigned to keep traffic moving in the right direction and to prevent potentially contaminated individuals from walking into clean areas, except by the designated route. photo credits: M. Meehan
Directions • Clear directions (in appropriate languages) are necessary to help individuals understand what is expected of them.
Decontamination Center • Establish Decontamination Center where staff can survey people to identify who are contaminated, but not significantly injured. • Center should provide showers for many people. • Replacement clothing must be available. • Provisions to transport or shelter people after decontamination may be necessary.
Contamination Surveys • Survey with GM survey meters • Use nuclear medicine and radiation therapy technologists or others familiar with the use of radiation detection instruments • Goal is <5 times background • Prepare protocol for survey & documentation photo credits: REAC/TS • Probe held ~ 1/2 inch from surface • Move at a rate of 1 to 2 inches per second • Follow logical pattern • Document readings in counts per minute (cpm)
Directions • Clear directions (in appropriate languages) are necessary to help individuals understand what is expected of them.
Surveying After Each Decontamination Procedure • Provisions must be provided for repeat surveying of individuals after each decontamination procedure to determine success of efforts and when individuals can be routed out of the decontamination center. photo credits: REAC/TS
Mass Decontamination Facilities • Where possible, the decontamination of many contaminated individuals should be carried out in existing shower facilities (e.g., at a fire house, school locker room, or public campground) • When such facilities are not immediately available, field decontamination capabilities may have to be implemented.
Mass Decontamination • Runoff • Responders should closely monitor the direction of runoff to prevent cross contamination between lanes and between zones. If possible, the decontamination area should contain a storm water drain or be on a slope that allows control of water runoff. • EPA and Runoff • The EPA has stated that they will not hold responders liable for run-off in a chemical or biological incident caused by a terrorist event. (EPA letter dated 9/17/00) • Protection of human life and health is primary goal.
Second Stage Decontamination Ambulatory Patients • When surveying shows that preliminary decontamination of individuals has not been complete, they should be sent to a second stage decontamination facility (e.g., specialized decontamination tent).
Clothing for Decontaminated Individuals • Supplies of clean clothing (sheets, blankets, scrub suits, etc.) should be available for individuals exiting decontamination stations. • Provide baggies for personal items, wallets, jewelry.
Second Stage Decontamination Non-Ambulatory Patients • Some specialized decontamination tents permit capabilities for decontamination of non-ambulatory patients as well as those who can walk.
Gowning Capabilities • Patients exiting second stage decontamination facilities need to be provided with clean clothes (hospital gowns, coveralls, sheets or blankets).
Resurveying • Individuals exiting the second stage decontamination facility should be surveyed again to determine the effectiveness of decontamination. Individuals found to be still contaminated can be rerouted through the second stage decontamination effort.
Hospital Preparation • Activate hospital plan • Alert key personnel • Obtain radiation emergency supplies • Obtain radiation survey meters • Call for additional support • Radiation Safety/ Health Physics • Medical Physicists • Radiation Oncology • Nuclear Medicine • Researchers
Hospital Preparation • Treating life threatening injuries is the 1st priority • Contamination control should not delay critical medical care • Plan for contamination control • Ensure staff are properly gowned and remind them to use universal precautions and double gloves • Establish multiple receptacles for contaminated waste • Protect floor with covering if time allows • For transport of contaminated patients into ED, designate separate entrance, designate one side of corridor, or transfer to clean gurney before entering, if time allows
Hospital Preparation • Assemble radiation emergency supplies • Ensure adequate number of survey meters • Check operation of survey meters • If available, request equipment for identification of radionuclides Cesium-137 in lead shield 662 keV
Unsuccessful Decontamination or First Aid • When field decontamination efforts have failed to remove adequate amounts of contamination or the individual requires additional first aid, they can then be routed to the ED.
Other Considerations • Victims may include the terrorist(s) • In most cases, universal precautions is all that is necessary to protect the staff • Risk to caregivers, who would likely receive low doses, is very small • Hospital staff doses at Chernobyl < 1 rem • 25 rem increases the risk of fatal cancer by ~ 1% • 25 rem increases the risk of severe hereditary effects by ~ 0.1% • Pre-plan who will be given radiation dosimeters • ED staff, surgery staff
Other Considerations • Larger hospitals or large metropolitan areas should consider stocking decorporation agents • Dose rates to first responders 20 cm from patient with uniform surface contamination: • Cs-137, 100 µCi/cm2 – 1 rem/hr • Co-60, 100 µCi/cm2 – 3.9 rem/hr • Dose rates to surgeon standing 20 cm from patient with radioactive fragment (0.2 mm long, 0.2 mm radius, embedded 20 cm deep) • Co-60, 1 Ci - 2.5 rem/hr
Psychological Casualties • Fear of radiation and misunderstanding of consequences • Long term psychological effects could arise hours or days after an incident • Counsel on acute and potential long term physical and psychological effects • Psychological effects include: Anxiety disorders Post traumatic stress disorder Depression Insomnia Traumatic neurosis Acute stress disorder
Psychological Casualties • Provide psychological counseling to staff, victims and their families • High-Risk groups: emergency workers, children, mothers w/ small children, cleanup workers • Provide exposed patients with a “sense of control of their health” • Resources: http://www.ncptsd.org
Contaminated Corpses • Disaster Mortuary Operational Response Teams (DMORT) • Restrict autopsies of highly radioactive corpses • No embalming or cremation • Health Physics assistance for autopsies • Use contamination control • Wear protective clothing • CDC Guidelines
Triage SiteInformation • Develop prepared information packets with Media Relations in advance with message for incidents involving radiation. • CDC website has Emergency Instructions for Individuals and Families titled, “FAQ About a Radiation Emergency” Available in English Español Deutsch Français Tagalog Chinese photo credits: CDC
Triage SiteInformation photo credits: CDC
Key Points • Medical stabilization is the highest priority • Lifesaving activities take priority over radiological concerns • Pre-plan to ensure adequate supplies and survey instruments are available • Train/drill to ensure competence and confidence • Make sure that you have prepared your personal family plan - http://www.ready.gov/ • Do what works for your facility and available resources • The first 24 hours are the worst, then many other experts will be available to help
Additional Resources Agencies that are available 24/7 to assist with medical management: • Radiation Emergency Assistance Center/ Training Site (REAC/TS), (865) 576-1005, http://orise.orau.gov/reacts/ • Medical Radiobiology Advisory Team (MRAT) Armed Forces Radiobiology Research Institute (AFRRI) (301) 295-0530, http://www.afrri.usuhs.mil/ • Websites: • Response to Radiation Emergencies by the Center for Disease Control, http://emergency.cdc.gov/radiation/ • Medical Response information on the Health Physics Society website, http://hps.org/hsc/responsemed.html • Disaster Preparedness for Radiology Professionals by American College of Radiology, http://www.acr.org/, search “disaster”
Acknowledgements The Medical Response Subcommittee members are: Jerrold T. Bushberg, PhD, DABMP, Chair Marcia Hartman, MS Linda Kroger, MS John J. Lanza, MD, PhD, MPH, FAAP Edwin M. Leidholdt, Jr., PhD, ABR Mark A. Melanson, PhD, CHP Kenneth L. Miller, MS, CHP, CMHP
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