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Mod 10
low temperature sterilization
| Term | Definition |
|---|---|
| sterility assurance level SAL | probability of a viable microorganism being present on a device after sterilization |
| permissible exposure limit PEL | the max amount/concentration of a chemical that a worker may be exposed to under OSHA regulations |
| time-weighted average TWA | amount of a substance employees can be exposed to over an eight hour day |
| alkylation | chemical reaction where hydrogen is replaced with an alkyl group, making cell unable to reproduce or metabolize |
| oxidation | addition of oxygen to a compound with a loss of electrons |
| EO sterilization cycle- Preconditioning & humidification | air is removed, moisture is added to make microorganisms more susceptible to EO |
| EO SC- gas introduction | EO gas is released from a cartridge to ensure complete penetration of the load |
| EO SC- exposure phase | devices are exposed to EO for 2.5 -3.5 houres |
| EO SC- Evacuation | EO gas is evacuated to reduce toxic levels |
| EO SC- air washes and aeration | warm air circulates to remove residual gas, making items safe to handle |
| aeration | sterilized packages are subjected to moving air to facilitate removal of toxic residuals after exposure to a sterilizing agent such as EO |
| residual EO | amount of EO that remains inside materials after they are sterilized |