mod 3 ch 28 infection control Flashcards
asepsis
absence of disease-producing microorganisms called pathogens.
- technique refers to practice and procedures implemented before, during, or after clinical procedure to prevent transmission and reduce risk infections
2 types:
medical and surgical asepsis
medical asepsis
known as clean technique, implemented for all pts. it breaks the chain of infection and protect susceptible host include hand hygiene and PPE
surgical asepsis
known as sterile tech, prevents intro microorganisms from envir into pt’s incision or body cavities during spec procedures
hand hygiene
most important med asepsis
alcohol based- reduce but not eliminate all. best when contain at least 60% alcohol, hands not visibly dirty
wash soap and water - when visibly dirty, after known or suspected exposure to C-DIFF, before eating and after toilet
non-alcohol based sanitizers- reduce growth of some but not kill, more likely to irritate skin and may cause microorgs to develop resistance
PPE
gowns- if clothing may become soiled, one time use
masks-
- –against large particles travel short distances (3 ft) and small particles that stay in air, decreased effect when wet,
- -N95 mask (special particle respirator) used w contagious airborne disease (TB), must be prof measured and fit tested
googles/faceshield- protect from splashes, sprays, and resp droplets. face shield should have crown and chin protect and wrap around face to point of ear
head and shoe covers- high risk cont of pt, rn, or hcp like OR or L&D
gloves- decrease risk transfer orgs 1 to another
- sterile and nonsterile
donning ppe
- hand hygiene
- don gown
- adjust mask
- adjust eyewear
- apply head cover
- apply shoe covers
- don gloves- gloves over gown
removal ppe
- gloves
- eyewear- handle earpieces lift away from face
- gowns - waist, neck strings, the pull down and away rolling outside to inside
- masks- bottom ties then top, never touch front
- shoe and head covers
- hand hygiene
Which phrase describes medical asepsis?
Procedure known as clean technique
Which statement is correct regarding hand hygiene in the health care setting?
Soap and water effectively reduce microorganisms on visibly dirty hands.
An effective alcohol-based hand scrub must contain at least
percent alcohol.
60
Match the situation to the type of personal protective equipment required.
Head cover ---Surgery or labor and delivery Goggles ----Sprays from respiratory droplets Gloves ----Direct contact with body fluids Gown -----Patient on transmission precautions
Place the personal protective equipment (PPE) in the order in which the nurse would remove them.
Gloves Eyewear Gown Mask Shoe covers
standard precautions
minimum infection prevention for all pts
- hand hygiene
- use ppe
- safe injection practices
- safe handling potentially contaminated eq or surfaces
- respiratory hygiene/cough etiquette
During contact or potential contact with:
- Blood and bodily fluids (except perspiration), secretions, and excretions.
- Nonintact skin.
- Mucous membranes.
Other potentially infectious material.
respiratory hygiene/etiquette
use tissue when sneeze or cough
- documentation- pt and family education regarding standard precautious must be documented
transmission-based precautions (2nd type)
- Airborne precautious- pts w known or suspected pathogens transmitted small droplets or particles
- droplet precautious- infections pathogens transmitted by respiratory droplets
- contact precautious- prevent trans infectious disease from 1 to another
contact precautions
single room, share same infection if only single room
ppe- gloves and gown
conditions- multi-drug resistant orgs (MDROs)- vancomycin-resisant Enterococcus, methicillin-resistant Staphylococcus aureus, Clostridium difficile (C-DIFF), respiratory syncytial virus, hep A
- scabies or herpes simplex virus (HSV)
- excessive wound drain
- fecal incontinences
respiratory droplet precautious
- single room and close door, if not place w facemask and separate
ppe- facemask, if spraying anticipated - gloves gown googles (faceshield)
- pts wear facemasks when leaving room
conditions- pharyngeal diptheria mumps, rubella, pertussis streptococcal pharyngitis and scarlet fever pneumonias and pneumonic plague meningococcal sepsis influenza
airborne precautions
suspended in air prolonged time, travel over greater distances for longer time than larger droplets
precautions- pt placed in airborne infection isolation room (AIIR) and do NOT come through reception area
PPE- N95 or higher respirator, gown, gloves, googles/faceshield
pt wear facemask when exit room
conditions- varicella or disseminated varicella zoster (chicken pox), rubeola (measles) mycobacterium tuberculosis (pulmonary or laryngeal tuberculosis)
Which practices would be included by the nurse when teaching about standard precautions?
hand hygiene
cough etiquette
safe injection practices
use ppe
Which precaution would the nurse take when handling needles (sharps) to prevent an accidental needlestick?
Using a needleless system whenever possible
As a member of the infection control committee, which action would the nurse suggest to help control transmission of respiratory infections among staff during influenza season?
Post signs in bathrooms demonstrating cough etiquette.
This is a good suggestion and could be very effective. All nurses and many visitors go into bathrooms and can easily see signs that catch their attention.
Which transmission-based precaution would the nurse take for a seriously ill patient being admitted for influenza?
Provide a mask for the patient if leaving the room.
immunizations
important for preventing the spread of communicable infections within a community. Immunization is the process by which an individual develops active acquired immunity against a specific agent.
reasons for underutilization immunizations
- herd immunity (indirect protection provided by large population who have been immunized) and seeing no reason
- conflicts religious, cultural, personal beliefs
- belief contracting disease gives stronger response than immunization
- vaccine refusal belief over toxic
infection protection at home
- perform hand hygiene
- avoid sharing personal care products
- clean reusable eq and disinfect w 10% bleach
Teach wound care- signs and symptoms, infection potential, changing and disposal, moisture proof bags for disposal
self-injections: puncture resistant container screw-top lid and label
do teach back for understanding
isolation
separate people contagious disease
protective isolation - protect pts who have compromised immune systems who may or may not be sick.
quarantine
separates and restricts movement who were exposed to contagious disease but not yet ill. keep from others to prevent spread