Chp 4 Controlling Bacterial/Viral Infections Flashcards
Sepsis
decay due to bacteria
Asepsis
opposite of sepsis, no pathogenic microorganism
Sterilization does what?
kills/ removes all micro-organisms in material
Disinfection reduces?
number of microorganisms
Disinfectants are used on what?
What do they do?
used on non-living substances
reduce number pathogens
Antiseptics
Disinfectants mild enough be used on living tissue
what are Standard Precautions?
why are they used?
aseptic techniques designed reduce transmission of pathogens
4 Standard Precautions
- latex or vinyl gloves when contacting body fluid
- gowns or masks for splashing
- hypodermic needles and sharps handled minimally, exposed properly
- spills cleaned with paper towel and gloves, areas disinfected with bleach
whats used in addition to PPE?
- health policies
- hand hygiene
- respiratory hygiene and cough etiquette
Chemotherapy
cancer treatment, use chemical agents to treat disease
Antibiotics are made by what?
what do they do?
microorganisms
have ability to destroy or inhibit growth of bacteria
Example of antibiotic?
penicillin
what do viruses do?
take over our cells to reproduce themselves so they’re inside our cells
any drug that kills cells that contain ____ also kill our _____ cells
viruses, body
Antibiotics ____ kill viruses
can’t
Mutations
mistakes that sometimes occur when cell reproduces DNA
bacteria reproduce every ____ minutes
20
what happens when bacteria/viruses get mutations? some mutations are ____, some mutations make _____, some mutations _____
harmful, no difference, beneficial
Vaccines include? (4)
inactivated bacterial toxins
killed microbes
parts microbes
viable and weakened microbes
