sanitation Flashcards
what 3 elements must be present for the spread of infection?
source of the pathogen
sustainable host
route of transmission
diseases with contact route of transmission
direct and indirect
direct - hep a, HIV, staph
indirect - HIV, hep b and C, pseudo
diseases with droplet route of transmission
hemophillus/pneumonia
influenza
MMR
pertussus
diseases with vehicle transmission (water and food)
(water) shigella and cholera
(food) salmonella
diseases with airborne transmission (droplet nuclei and aerosol)
aerosol - legionella
droplet - TB, measles and small pox
diseases with vector borne transmission
malaria, ricketsia, bubonic plague
standard precautions contains what 2 practices?
universal precautions and body substance isolation
standard precautions applies to what substances?
Blood
All body fluids
Nonintact skin
Mucous membranes
what is disinfection
Disinfection destroys vegetative form of all pathogens except bacterial spores
what are the 2 types of disinfection?
chemical and physical
what is the most common type of disinfection?
pasteuization
what is pasteurization?
using water bath to kill
kills by coagulation of bacteria cell protein
medical devices that are in contact with what parts of the body need to be sterilized?
Medical devices contacting with sterile body tissues or fluids are critical items & should be sterile before use
what is the definition of sterilization?
destroys all microorganizms
what is the most common of sterilization procedures?
steam (physical method)