Asepsis & Infection Control Flashcards
Freedom from disease causing microorganisms
Asepsis
Technique used to decrease the possibility of transferring microorganisms from one place to another
Aseptic technique
Type of asepsis: clean technique
Medical asepsis
Type of asepsis: includes all practices intended to confine a specific microorganism to a specific area, limiting the number, growth, and transmission of microorganisms
Medical asepsis
Type of asepsis: sterile technique
Surgical asepsis
Type of asepsis: refers to practices that keep an area or object free of all organisms, includes practices that destroy all microorganisms including spores
Surgical asepsis
Technique that destroys or kills most microorganisms, except bacterial spores
Disinfection
Microscopic dormant structure formed by some pathogens that are very hardy and often survive common cleaning technique
Spores
Invasion of body tissue by microorganisms and their growth there
Infection
Infection wherein microorganisms produce no clinical evidence of disease
Asymptomatic or subclinical infection
Detectable alteration in normal tissue function
Disease
Ability of a microorganism to cause disease
Pathogenicity
Severity of a condition caused by a pathogen
Virulence
Type of disease wherein the infectious agent can be transmitted to an individual by direct or indirect contact, or as airborne infection
Communicable disease
Microorganism that causes disease
Pathogen
Microorganism that can cause a disease even in a healthy host
True pathogens
Microorganism that can cause infection in people who are immunocompromised
Opportunistic pathogens
State of infection, organ injury, or damage in response to infection
Sepsis
Type of infection that are associated with the delivery of health care services in a health care facility
Nosocomial infection
Number of days between when you’re infected and when you might see symptoms
Incubation period
Microorganisms that cause nosocomial infections that originate from the clients themselves
Endogenous
Microorganisms that are from the hospital environment and hospital personnel
Exogenous
Infection that is a direct result of diagnostic or therapeutic procedure
Iatrogenic infection
Infection that is confined to a specific part of the body
Local infection
Infection that involves different body systems
Systemic infection
Sudden onset infection
Acute infection
Slow onset or slow progression infection
Chronic infection
Chain of infection: microorganism producing an infectious process
Etiologic agent
Chain of infection: source of microorganism e.g. food, water, feces, plants, animals, environment
Reservoir
Person or animal reservoir of a specific infectious agent that usually does not manifest any clinical signs of disease
Carrier
Chain of infection: female anopheles mosquito reservoir carries malaria parasite but is unaffected by it
Reservoir
To break the chain from the _____, kill the pathogen e.g. through disinfection, early detection
Reservoir
Chain of infection: route where the microorganism leaves the reservoir
Portal of exit
What tract serves as the portal of exit for sneezing?
Respiratory tract
What tract serves as the portal of exit for coughing?
Respiratory tract
What tract serves as the portal of exit for breathing?
Respiratory tract
What tract serves as the portal of exit for talking?
Respiratory tract
What tract serves as the portal of exit for saliva?
Gastrointestinal tract
What tract serves as the portal of exit for vomitus?
Gastrointestinal tract
What tract serves as the portal of exit for feces?
Gastrointestinal tract
What tract serves as the portal of exit for semen?
Reproductive tract
What tract serves as the portal of exit for urine?
Reproductive tract
Method of transmission that involves an immediate and direct transfer of microorganisms from person to person
Direct transmission
Method of transmission that involves an indirect transfer of microorganisms from person to person
Indirect transmission
Droplet spread is a form of _____ transmission but can only occur if the source and the host are within _____ feet of each other
Direct, three
Vehicle is a form of _____ transmission wherein a substance serves as an immediate means to transport and introduce an infectious agent into a susceptible host through a suitable portal of entry
Indirect
Fomites is a form of _____ transmission wherein _____ objects or materials harbor the infectious agent
Indirect, inanimate
Vector-borne is a form of _____ transmission wherein an animal or flying/crawling insect serves as an intermediate means of transporting the infectious
agent
Indirect
Method of transmission wherein the residue of evaporated droplets emitted by an infected host can remain in the air for long periods
Airborne transmission
Chain of infection: microorganisms must enter the body to infect a person
Portal of entry
Chain of infection: any break in the skin
Portal of entry
Chain of infection: person at risk for infection
Susceptible host
Local and nonspecific defensive response of the tissues to an injurious or infectious agent
Inflammation
Inflammation is a mechanism that destroys or dilutes the _____ agent to _____ further spread of injury and to _____ repair of damaged tissue
Injurious, prevent, promote
Phase of the inflammatory response where bleeding is stopped
Vascular
Process where clotting occurs to stop bleeding
Hemostasis
Process where blood vessels dilate to neutralize the pathogen and deliver nutrients to the site of injury
Vasodilation
Phase of the inflammatory process wherein more fluids go to the site of injury to flush out, clean, or dilute the injurious agent
Exudative
Phase of the inflammatory process wherein new tissues are repaired or formed
Reparative
What are the five signs of inflammation (English)?
Redness, pain, heat, swelling, loss of function
What are the five signs of inflammation (Latin)?
Rubor, dolor, calor, tumor, functio laesa
Latin for redness
Rubor
Latin for pain
Dolor
Latin for heat
Calor
Latin for swelling
Tumor
Practice that lowers risk to health care associated infection
Hand hygiene
T/F: Use hand rub when hands are visibly soiled
False - wash hands with soap and water
5 Moments of Handwashing
- Before touching patient
- Before clean/aseptic procedure
- After touching patient
- After touching patient’s surroundings
- After handling body fluid
Measures to prevent the spread of infection or potentially infectious microorganisms to health personnel, clients, and visitors
Isolation precaution
Used in care of all hospitalized persons regardless of their diagnosis or infection status
Standard precautions
Used in addition to standard precautions for clients with known or suspected infections that are spread in 1 of 3 ways (airborne, droplet, contact)
Transmission based precaution
Precaution used for immunocompromised patients
Reverse isolation or protective environment
Three indicators for glove use
- Before sterile condition
- Before contact with body fluid
- Before contact with patient
Three indicators for glove removal
- Damaged glove
- After contact with body fluid
- After contact with non-intact skin and mucous membrane
- After contact with patient and their surroundings
- After contact with contaminated body site
- When indication for hand hygiene
_____ _____ is a priority before any aseptic procedure
Hand hygiene
Before procedure, ensure that the patient understands how to prevent _____ of equipment
Contamination
_____ hospital procedures and requirements for sterile technique
Review
T/F: Ill health care providers should avoid invasive procedures or at least wear a surgical mask
False - two surgical masks should be worn
All objects in a sterile field must be _____
Sterile
Sterile object [remains sterile/becomes nonsterile] when touched by a nonsterile object
Becomes nonsterile
Sterile items below waist level are considered _____
Nonsterile
Sterile fields must always be kept in _____ to be considered sterile
Sight
Avoid contamination when opening or adding sterile equipment to the _____ _____
Sterile field
Puncture, moisture, or tear that passes through a sterile barrier is considered _____
Contaminated
Once a sterile field is set up, the border of _____ inch at the edge of the sterile drape is considered _____
One, nonsterile
Any doubt about the sterility of an object is considered _____
Nonsterile
Sterile persons may only contact _____ areas, nonsterile only _____ areas
Sterile, nonsterile
Movement around sterile field must not _____ sterile field
Contaminate