Decontamination. Decon Purposes Reduce patient exposure/dose Reduce secondary contamination risk.
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Transcript of Decontamination. Decon Purposes Reduce patient exposure/dose Reduce secondary contamination risk.
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Decontamination
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Decon Purposes
Reduce patient exposure/dose Reduce secondary contamination risk
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Decon Types
Physical Chemical
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Decon Methods
Dilution Absorption Neutralization Isolation
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Dilution
Washing with large amounts of water Lowers chemical concentration to non-
hazardous level May be aided by use of a soap Some chemicals should NOT be mixed
with water
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Absorption
Use of pads/towels to “blot” up material Usually absorbed after washing Not used as primary method of decon Commonly used to clean environment
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Neutralization
Chemical decontamination method Reaction with another substance
neutralizes hazard Seldom used
Difficult to select proper neutralizer Difficult to apply in correct amount Reactions frequently generate heat
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Isolation/Disposal
Separating people, equipment from hazardous substance
Removal of clothing, jewelry, etc.
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Decon Decision Making
Fast Break Long Term
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Fast Break
Quick decisions to prevent rescuer, equipment contamination
Used on incidents with: Patients who have self-rescued Critical patients out of hot zone needing
immediate care Unknown materials Potentially life-threatening materials
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Fast Break
Do NOT expose yourself Contain, isolate patients Remove clothing, if possible by having
them undress themselves Wash with large amounts of water Wrap completely in blankets (human
burrito)
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Fast Break
What are the risks associated with immediate care?
What are the benefits of the patient receiving immediate care?
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Fast Break
As incident evolves: Can/should runoff be contained? Controlled decon facilities? Patient privacy? Reclothing patients? (scrub suits)
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Long Term
Occurs when patients remain in hot zone Rescue performed by hazmat team IMS, decon corridor will have to be
established before rescue is attempted Set-up can take up to 60 minutes
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Long Term
Allows for: More complete decontamination Better PPE Less risk of secondary contamination Greater environmental consideration Fewer opportunities for error
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Access/Decon Corridor
ColdWarm
Hot
Access Corridor
Decon Corridor
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Access/Decon Corridor
Access
Responder Decon
Patient Decon
Medical Monitoring
Rehab
Treatment Area
Command Post
Transport Area
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Decon Agents
Water Tincture of Green Soap Isopropyl Alcohol (isocyanates) Vegetable Oil (water-reactive substances)
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Two Step Decon Process
Gross decontamination Used for “fast-break” situations Procedure
Remove all clothing, jewelry Wash, rinse with soap/water x 2 Be sure patients do not stay in runoff Wrap in blanket
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Eight Step Decon Process
More thorough Requires complete decon corridor
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Eight Step Process
Rescuers enter decon corridor; mechanically remove victim contaminants
Rescuers drop equipment in tool-drop; remove outer gloves
Decon personnel shower, scrub all victims/rescuers
Rescuers remove, isolate SCBA
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Eight Step Process
Rescuers remove protective clothing
Rescuer, victim personal clothing removed
Rescuers, victims receive full-body wash with soft brushes, water, mild soap
Patients assessed, treated before transport; Rescuers medically monitored
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Difficult Contamination Areas
Scalp, hair Ears Nostrils Axilla Fingernails Navel
Genitals Groin Buttocks Behind knees Between toes Toenails
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Transport Considerations
Patients field decontaminated are only semi-decontaminated
May harbor latent contaminants, may outgas contaminants in body fluids
Limit number of ambulances used in transport Remove non-essential equipment Wrap patient in plastic sheeting, blankets Cover floor with plastic sheeting
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Transport Considerations
Better Dirty and Alive than Clean and Dead!
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Transport Considerations
Do NOT assume your hospitals are equipped to
handle contaminated patients
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Transport Considerations
Preplan transport of contaminated patients to hospitals Hospitals may want contaminated patients
delivered to location other than usual ER entrance
Hospitals need adequate warning to prepare to receive these patients. Alert should come when first EMS unit arrives at the scene.