Sanitation Flashcards
cheapest and most effective way of disease prevention
sanitation
first step in sanitation
barn hygiene- removing gross contamination, clean animal, areas animal goes, yourself. soap and water.
Removing visable contamination removes up to ___% of pathogens
95%
how soap removes bacteria
doesnt kill, helps to break down (emulsify) oils into small droplets. allows it to mix w water and be washed away
Step 2 in sanitation
Disinfection
List examples of natural forms of disinfection
drying agents: moving air, sunlight (prolonged UV light), ground limestone
define disinfection
process used to destroy harmful/ pathogen organisms on inanimate objects
difference between -icidal and -static
- icidal= kills
- static= reduces growth of
define an antiseptic
put on living tissue to reduce pathogens
define sterilization
complete destruction of all forms of microorganisms by chemical or physical means (heat and pressure)
how an autoclave sterilizes
heat and pressure
typically, which is at higher concentrations: antiseptic or disinfectant
disinfectant
which is typically mixed at a higher concentration: -icidal or -static
-icidal
factors that could effect a disinfectant
time, temp, ph, # and type of organism, presence of extraneous material, concentration
Chlorine comp: disinfectant or antiseptic?
disinfectant (also sanitizer)
Chlorine comp: effective against
Bacteria, some viruses, fungi, algae, not spores
which disinfectants dont get inactivated in organic matter
chlorhexidine, quat compounds, phenol
chlorine comp: how long must remain on site
10 min
why we use chlorine compounds for blood spills
effective against AIDS and Hep B
example of iodine compound
betadine
iodine comp: disinfectant or antiseptic
both
iodine comp: effective against
bacteria, viruses, fungi, algae, not spores
iodine comp: ab how long is residual activity
4-6hrs
what is iodophor
combo of iodine and a carrier molecule, allows iodine to be released overtime (prolonged activity) good antiseptic
Chlorhexidine: antiseptic or disinfectant
both
Chlorhexidine: effective against
bacteria, viruses, fungi, algae, some spores
Chlorhexidine: how long residual activity
up to 2 days
quat comp example
kennel sol
quat comp: disinfectant or antiseptic
disinfectant
Quat comp: effective against
bacteria, viruses, fungi, algae, not spores
which disinfectant/ antiseptic effective against some spores
chlorhexidine
phenol: antiseptic or disinfectant
disinfectant
example of phenol disinfectant
household cleaners like lysol
phenol: effective against
bacteia, viruses (probably fungi and algae)
hydrogen peroxide aka
H2O2
H peroxide: antiseptic or disinfectant
antiseptic
H peroxide: effective against
some bacteria and viruses
how H peroxide works
inhibits protein in cell walls
also
breaks down in H2O, releases free O2 gas (hence the bubbles)
how do we typically prep skin for surgery
nolvasan or betadine applied, rinsed, then alcohol
alcohol: antiseptic or disinfectant
antiseptic
alcohol: effective against
bacteria, fungi, viruses, algae, no spores
contact time for alcohol
several minutes
if alcohol is applied to an open wound what happens
hurts, prolongs healing
what kind or alcohol typically used
70% isoprophyl
