infection control

Card Set Information

Author:
joyjohnson
ID:
119616
Filename:
infection control
Updated:
2012-01-22 15:04:46
Tags:
infection control
Folders:

Description:
infection control
Show Answers:

Home > Flashcards > Print Preview

The flashcards below were created by user joyjohnson on FreezingBlue Flashcards. What would you like to do?


  1. infection
    the invasion and multiplication of microorganisms in or on the body tissue that produce signs and symptoms as well as an immunologic response
  2. role of microorganisms in infection
    pathogens

    microorganisms capable of harming people by producing disease

    sepsis

    poisoning of tissues by presence of infection
  3. types of infections
    subclinical

    • silent or asymptomatic infection
    • laboratory verified infection that causes no signs or symptoms
    • carrier-can transmit infection to others

    latent infection

    occurs after a microorganism has been dormant in the host(may be for years)

    exogenous infection

    • results from environmental pathogens
    • pathogen-any microorganism capable of disease

    endogenous infection

    from the hosts normal flora

    microorganisms that live on or within a body to compete with disease producing microorganisms and provide a natural immunity against certain infections
  4. Agents causing infection
    bacteria

    • airborne
    • soilborne/vectorborne(via animals)

    viruses

    reproduce inside living cells

    fungi include mold, yeasts

    parasites

    • live on another organism without contributing to host
    • EX: tapeworms, hookworms, mites, fleas,ticks
  5. chain of infection
    pathogenicity

    ability of organism to cause disease

    virulence

    vigor with which an organism grows and multiplies

    specificity

    attraction of organism to specific host
  6. source
    reservoirs, elements in the environment

    inanimate objects: medicines, air, food, water, blood

    human sources: clients, other health care personnel, visitors

    • may be from those infected actively
    • in incubation stage of disease
    • carriers
    • endogenous

    animals: rats, insects, mosquitoes, ticks
  7. portal of exit
    MEANS FOR MICROOGANISMS TO LEAVE SORCE

    sputum, emesis-vomit, blood, urine/feces, wound drianage, genital secretions
  8. modes of transmission
    contact/direct transmission

    the susceptible host comes into direct contact or indirect contact with the sosurce

    • direct
    • indirect-dressing, needle, surgical instrument
    • droplet-mucous membranes exposed to secretions airborne less than 3 feet
    • ex. veneral disease

    airborne transmission

    results from

What would you like to do?

Home > Flashcards > Print Preview