Exam 1 Flashcards
(88 cards)
What are Healthcare Associated Infections (HAI)? and what are three impacts?
Result from healthcare delivery in any setting while receiving treatment for another condition.
Impacts physical, emotional, and financial health.
What are exogenous HAIs?
From environment or personnel.
What are endogenous HAIs? Two examples
Come from the patients.
MRSA or c.diff
Give three examples that are NOT HAIs
- Infection present on admission (shows up on or after 3rd hospital stay day)
- Transplacental infection (i.e. herpes)
- Reactivation of latent infection (i.e. shingles)
Most common HAIs
CAUTI, SSI, VAP, CLABSI, CDiff, and MDRO
2024 National patient safety goals
Reviewed/revised by JACO to promote specific patient safety improvements. Always has prevent infection with hand hygiene!
What is the chain of infection?
Organisms—> Reservoir—> Portal of exit—> Transmission—> Portal of Entry—> Susceptible host
What is the chain of infection?
Organisms—> Reservoir—> Portal of exit—> Transmission—> Portal of Entry—> Susceptible host
Organisms/infectious agents
“The bug”
Pathogens or normal flora that become pathogenic like e.coli or MRSA
reservoir
Where the pathogen lives and multiplies. May be living or non-living
Portal of exit
How it leaves via: bodily fluids, coughing/sneezing/diarrhea, seeping wounds, tubes/IV lines
Mode of transmission
Contact—> direct or indirect
Droplet—> cough, sneeze
Airborne—> A/C, sweeping
Portal of entry
- eyes/nares/mouth/genitals/cuts/scrapes
- wounds, surgical sites, IV, drainage tube sites
- bite from vector
Susceptible host
What are the 4 determining factors?
- person with inadequate defense
1. Virulence
2. Org. Ability to survive in host environment
3. # of organisms
4. Host’s defenses
5 Stages of infection
IPIDC- infant pooped if discovered crying
Incubation
Prodromal
Illness
Decline
Convalescence
Incubation
From the time of infection until the manifestation of Sx; infectious
Prodromal
Appearance of vague Sx; not all diseases have this
Illness
Signs and Sx present
Decline
of pathogens decrease
Convalescence
Tissue repair and return to health
Local infection
Occurs in limited region in the body (i.e UTI)
Systemic infection
Spread via blood or lymph
Affects many regions (i.e. septicemia)
Acute infection
Rapid onset of short duration
Chronic infection
Slow development, long duration