Infectious diseases Flashcards
a new infection that develops during a hospitalization
nosocomial
3 most common nosocomial infections
surgical site infection
pneumonia
central vascular line
neutropenic precautions
specifically for pts with low WBC
in aging, number of lymphocytes is _________ but….
the same, but morphologically inferior
where do pathogens/agents hang out?
reservoirs
3 steps of chain of transmission
- portal of exit
- transmission
- modes of entry in susceptible host
how does chemotherapy make pts immunocompromised?
kills all cells - some WBCs
neutropenic precautions are for patients with…
low WBC count
“protective isolations” of neutropenic pts means…
they’ll be put in a single bed room
biggest thing to watch for in a neutropenic pt
fever
__________ response more common upon aging
autoimmune
microorganisms transferred with no intermediate
direct contact transmission
transfer of infectious agent through an intermediate
indirect contact transmission
how far can droplets fly
<3 ft
3 examples of droplet transmission
- MRSA
- flu
- SARS
2 main examples of airborne transmission
- tuberculosis
2. varicella
CRE is resistant to __________
cleaning solutions
2 biggest things about indirect transmission
- will live on surface for a long time
2. hard 2 kill
CRE transmission type
indirect contact
most common nosocomial infection
staph
suparative
pus forming
most common suparative infection
staph
how does staph spread?
indirect contact
main differences between bacteremia and septicemia
- S = multiplying bacteria
- B can resolve w/o treatment
- S can progress to sepsis
- S treated by antibiotics
transmission of acenitobacter
contact
how long can acenitobacter live on skin?
2-3 days
acenitobacter frequently seen in ______ pts
vent
MRSA is resistant to all drugs EXCEPT ________
vancomycin
APTA guidelines regarding MRSA
colonized area contained for clinic treatment
candida transmission
direct contact
fungal infection that colonizes body cavities
candida
_______________ is a growing problem in candida
fluconazole resistant strain
bone inflammation that can be secondary to staph
osteomyelitis
where does VRE colonize?
digestive and urinary tract
transmission of strep
indirect contact
strep is highly __________
contagious
most common cause of pneumonia
streptococcus pneumoniae
infection associated with trauma and ischemia
necrotizing fasciitis
necrotizing fasciitis is ________ if untreated
lethal
pseudomonas aurengiosum transmission
contact
pseudomonas aurengiosum population
IV drug users
pseudomonas aurengiosum characteristics
fruity odor, yellow/green, nosocomial
TB transmission
airborne
over how many feet can airborne transmission occur?
> 12
flu transmission
droplet
causes annual outbreaks in infants and v young kiddos
respiratory synctial virus (RSV)
HIV transmission
direct contact
use alcohol based hand cleaners for all infections EXCEPT:
c difficile
c diff precautions
contact
SARS
severe acute respiratory syndrome
SARS has a long _______
incubation period
transmission of SARS is associated with these two things in HCW:
- close contact
2. inconsistent use of PPE
a form of atypical pneumonia
legionnaire’s disease
legionnaire’s disease is often found where….
temps allow bacteria to thrive
describe appropriate transmission based precautions for legionnares
no real transmission precautions bc only spread with the special equipment, not person-to-person
most common to see an infection associated w implanted devices in a….
TKR
pts who have infections associated w implanted device have very long……
recovery periods - have to take it out and put a new one in
based on principle that all fluids, mucous membranes and excretions may contain infectious agents
standard precautions
one excretion that is not included in standard precautions
sweat
3 things that can dec hand hygiene
- jewelry
- length of nails
- artificial nails
standard precautions should reduce incidence of which two transmissions?
direct and indirect
3 categories of transmission-based precautions
- contact
- airborne
- droplet
2 common infections that need contact precautions
- VRE
2. c diff
explain cohorting
combining pts with similar infections in rooms to control MRSA and VRE
PPE donning/doffing order
- gown
- mask/respirator
- goggles/face shield
- gloves
pts who need droplet precautions should wear a _____ when outside room
mask
what is necessary to don for droplet precautions?
mask - not respirator
room with air exhausted directly to the outside or recirculated
airborne infection isolation room
turn off this tube during therapy
feeding
wear PPE when suctioning or mobing pt with uncapped __________
tracheostomy
avoid _________ foley _____________
raising foley above bladder level
5 recommended vaccinations
- hep b
- flu
- MMR
- varicella
- tetanus