Infection Prevention and Control

What are the organisms in order of most to least resistant?

Prions --> Bacterial spores --> Mycobacteria --> Nonlipid viruses --> Fungi --> Bacteria --> Lipid viruses

Sterilization includes the destruction of ______.

all forms of life

Disinfection rids a surface of ______ microorganisms.

most

To disinfect a surface, a ______ is used.

disinfectant

To disinfect skin, an ______ is used.

antiseptic

Antiseptics do not kill ______, and cannot be used as a disinfectant.

spores

What factors can affect disinfection?

- Concentration of disinfecting agents

- Presence of organic material

- Surface type

- pH

- Temperature

- Biofilms

- Compatibility of disinfectants

What are some methods of disinfection/sterilization?

- Heat

- Filtration

- Radiation

- Chemosterilizers

- Ethyl or isopropyl alcohol

- Tinctures

- Iodophor

- Hydrogen peroxide

- Sodium hypochlorite

- Quats

What are the types of transmission-based precautions?

- Standard

- Contact

- Droplet

- Airborne

- Reverse

What are the risk groups of microorganisms, from least to most dangerous?

RG1 --> RG2 --> RG3 --> RG4

What are the categories of biological agents from lowest to highest priority?

Category C --> Category B --> Category A

What are the biosafety levels from lowest to highest risk?

BSL-1 --> BSL-2 --> BSL-3 --> BSL-4