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19 Cards in this Set

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  • Back
Legal term; process that reduces the number of microorganisms on inantimate object to a safe level judge by public health standards
Chemical agents applied to SKIN that kill pathogens and lower the number of normal flora.
Chemical agents applied to inanimate objects that destroy pathogenic microorganisms. Rarely achieve sterility
Freedom from all viable forms of microorganisms. Absolute state
To kill, make nonviable
To prevent multiplication without necessarily killing the agent.
Toxic condition that results from the presence of microbes or toxins in the body
Asepsis (Not related to sepsis)
Condition free of viable microogranisms
Health care acquired sickness. ie during hospital stay
Problematic Microorganisms (from a killing stand point)
*Bacterial Endospores (can withstand 20 hrs of boiling water, Bacillus genus)
*Mycobacteria (waxy cell wall/acid fast, still susceptable to heat)
*Hepatitis (hard to kill because it's in blood)
*Pseudomonads (Can be found in many locations and they are resistant to chemical disinfectant)
Sodium Hypochlorite
Household disinfectant 'clorox' and MOST EFFECTIVE AGENT IN KILLING HIV
Alcohols (as disinfectant)
Kills bacteria and fungi but not endospores and nonenveloped viruses. Isopropanol is alcohol of choice.
Heavy Metals (as disinfectant)
*Silver - 1% AgNO3, kills Neisseria Gonorrhoae in eyes of newborns.
*Mercuric Chloride - Longest history of disinfectant, now only used in paint to kill fungi
*Copper Sulfate - Kills algea in pools, reservoirs, fish tanks
*Zinc Chloride - common in mouthwash and antifungal in paints
Quaternary Ammonium Compounds (Quats)
Zephiran + Cepacol
Bactericidal, fungicidal, ameobicidal and virucidal against enveloped viruses.
Not good against pseudomonads.
Organic Acids + Derivatives
*Potassium Sorbate - inhibit mold growth in acidic foods, ie chees.
*Sodium Benzoate -antifungal in low pH environment, ie soda.
*Parabens - inhibit mold growth in liquid cosmetics and shampoos
*Calcium propionate - (mycoban) Prevents mold growth in bread
Like formaldehyde but less irritating and more effective. Used to sterilize hospital instruments (Cidex)
Kills spores in 3-10 hrs
Ethylene oxide (gas)
Widely used to sterilize medical supplies. Sterilized spacecraft
Benzoyl Peroxide
Good for treating wounds infected by anaerobic pathogens
Steps to Clean Up Bio-Hazardous Spill
1. Contain Spill
2. Saturate towels with disinfectant (start pouring disinfectant on the outeredge working in
3. Wait
4. Discard material