chapter 8,9 Flashcards
hand washing in the decontamination area should be
a sink dedicated to hand hygiene in the decontamination area
transeophagael echocardiology probes are classified as
semi critical because they come in contact with intact mucous membranes
to prevent aerosolization
items should be brushed below the surface of the water
detergents used in mechanical cleaners should be
low foaming
what is the preferred pH for detergents used for most cleaning processes
neutral
which of the following statements about the use of washer disinfectors is not true
all items should be washed in the same cycle
water must be degassed each time an ultrasonic cleaners tank is changed because excess bubbles
reduce the energy of the cavitation process
written cleaning instructions for surgical instruments should be provided by the
device manufacturer
floors and walls in the decontamination area should be
constructed of particulate materials
untreated water
increases the likelihood of mineral scale deposits
these are used to breakdown fatty deposits on instruments
lipase enzymes
instrument lubrication is performed
after cleaning
to prevent coagulation of proteins, instruments should be pre-rinsed using
cool water
detergents used in mechanical cleaners should be
low foaming
during manual cleaning , instruments should be brushednusing a
to and fro motion
powered surgical instruments
cannot be immersed
the decontamination area should have
negative airflow in relation to the other areas of the department
ultrasonic irrigators are used to
clean devices with lumens
rigid container filter retention plates should be
removed from the container and lid and cleaned separately
the use of heat to kill all microorganisms except spores
thermal disinfection
a chemical that kills most pathogenic organisms but does not kill spores
disinfectant
a solution that inhibits the growth of bacteria , usually used topically and only on animagte living objects
antisptics
the length of time an item must remain in wet contact with a disinfectant
wet contact time
the destruction of nearly all pathogenic microorganisms on an inanimate surface
disinfection
relatating to the destruction of bacteria
bactericidal
the frequency with which the concentration level of OPA or other high level disinfectant must be tested
each use
a process by which all microbial life are destroyed
sterilization
minimum effective concentration MEC testing is required when using this disinfectant
ortho-phthalaldehye (OPA)
when manually disinfecting lumens care should be taken to ensure there are no present inside the lumen
air bubbles
this low level disinfectant is incompatible with soap
quaternary ammonium compund
when working with glutaraldehyde technicians should always wear
nitrile gloves
how are items that have undergone high level disinfection dried
with HEPA filtered air
in a washer disinfector, the key source of disinfection is
water temperature
the use of test strips to test the minimum effective concentration (MEC) in HLD solutions is required
each time the solution will be used
items introduced directly into the bloodstream or other normally sterile areas of the body are classified as
critical items
iodophors are a member of which chemical family
halogens
phenolics are classified as
low-to intermidiate-level disinfectnats
which of the following are classified as high level disinfectants
glutaralhydes and OPA
thermal disinfection is accomplished using
heat
how long must alcohol remain wet contact with an item to achieve a reasonable level of disinfection
5-10 minutes
which of the following chemicals would be the best choice for HLD of instruments
OPA
