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Unit 3.4 Decontamination (Core). Objectives. Identify appropriate level of protection Identify what objects become contaminated Identify various methods of decontamination Describe emergency decontamination Identify appropriate methods for dealing with contaminated patients. Unit 3.4 2.
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Unit 3.4 Decontamination (Core)
Objectives • Identify appropriate level of protection • Identify what objects become contaminated • Identify various methods of decontamination • Describe emergency decontamination • Identify appropriate methods for dealing with contaminated patients Unit 3.4 2
Objectives (cont.) • Demonstrate emergency decontamination • Perform technical decontamination Unit 3.4 3
Types of Contamination • Direct contamination • Contact with product or vapors • Cross contamination • Contact with a contaminated object Unit 3.4 4
Assessment of Contamination • Proper training • Proper protection • Physical and chemical properties • Is it needed • Type required Unit 3.4 5
Decontamination Methods • Dry Brushing, removing, vacuuming • Does not involve liquids • Usually the first step of decon process • Important if chemical is water reactive • Wet decontamination Flushing, dilution • Commonly uses water • Dilution or physical removal by flushing Unit 3.4 6
Decontamination Methods (cont.) • If material is not water soluble • Then surfactant must be used • Laundry detergent is common Unit 3.4 7
Gross Decontamination • Occurs at edge of hot zone • Leaves bulk of contamination in hot zone • Combination of methods • Hands off process • Advantages: • Minimizes the risk through the rest of process • Lowers possibility of exposure to vapors Unit 3.4 8
Secondary Decontamination • Occurs after gross, in warm zone • Systematic head to toe removal • Methods: Usually wash followed by rinse and removal of PPE • Hands-off until wash and rinse is done • Process will vary Unit 3.4 9
Tertiary Decontamination • Fine removal of remaining contaminants • Usually performed at hospital • Includes Hygiene showers, skin debridement, dialysis, surgical interventions Unit 3.4 10
Emergency Decontamination • Rapid removal of contaminants • Advantages • Requires minimal special equipment • Performed by operations level responders • Enables rapid medical treatment • Minimizes risk down stream Unit 3.4 11
Emergency Decontamination • Equipment • Hydrant gate valve • 200’ 2 1/2” hose • 50’ 1 1/2” hose • Gated wye • 1 1/2” nozzle • Cribbing • Salvage cover or plastic sheeting • Set up wind hill Unit 3.4 12
Decontamination Steps strip flush wrap Unit 3.4 13
Technical Decontamination • A thorough step by step process used to remove contaminates from responders or victims in a non-urgent manor. • More thorough removal of contamination • Methods will vary with chemical • Technician level assistance is required Unit 3.4 14
Mass Decontamination • Rapid flush of large number of victims • Methods Single engine or multiple engine • Considerations • Scene control • Use of hand lines and deck guns • Hands-off operation Unit 3.4 15
Summary • Types of decontamination • Methods of decontamination • Stages of decontamination Unit 3.4 16