Infection Control, Safety, First Aid and Personal wellness Flashcards
microorganism invades the body,
multiplies, and causes injury or disease
- Infection:
microorganisms that cause disease
Pathogens
nonpathogenic microorganisms on our skin
and in other areas (GIT)
Normal flora:
an infection affecting only one area of
the body
Local Infection
an infection affecting the entire
body
- Systemic infection
infection from one’s own flora
Autogenous infection
spread from person to person
Communicable Infection
acquired in hospitals or other health care
facilities
Nosocomial Infection:
microorganisms develop
resistance to specific antibiotics
Antibiotic-resistant infections
pathogenic
microorganisms resistant to several drugs
Multidrug resistant organisms (superbugs) :
a continuous link in the
transmission of harmful
organisms between a
source and the
susceptible host
CHAIN OF INFECTION
bacteria, fungus, protozoon, rickettsia, virus
infectious agent
animal, human, equpiment, foo, soil, water
reservoir
blood, exudates, excretions, secretions
exit pathway
airborne, contact, droplet, vector, vehicle
means of transmission
body orifices, mucous membranes, broken skin
entry pathway
elderly, newborn, acute?chronically ill, immune suppressed, unvaccinated
susceptible host
components of the chain of infection
Infectious agents (source)
Reservoir
Exit pathway
Means of transmission
Portal of Entry
( Entry Pathway)
- Causative agent
- Pathogenic microbe responsible for causing an
infection - Bacteria, parasites, fungi, viruses
Infectious agents (source)
- Source of an infectious agent
- Place where the microbe could grow, survive
and multiply - Humans, animals, insects, food, water, soil,
equipment
Reservoir
- a way an infectious agent can leave a reservoir host
- secretions from eyes, nose, mouth
- exudates from wounds, mucous membranes, tissue
specimens, blood, feces, urine
Exit pathway
- Contact ( Direct or Indirect)
- Droplets
- Airborne
- Vector
- Vehicle
Means of transmission
physical transfer of
infective material from the source
to the susceptible host through
close or intimate contact
Direct contact-
– transfer of
infective material via an object
,such as bed linens, instruments,
furniture
Indirect contact
▪ Transfer of an infectious agent to the
mucous membranes of a susceptible
individual via infectious droplets
DROPLET TRANSMISSION
▪ Do not remain suspended in the air
▪ Transmitted through coughing ,
sneezing, talking
DROPLET TRANSMISSION
What size of the droplets transmission
▪ 5 um or larger
What size of the droplets transmission
▪ 5 um or larger
- Dispersal of infectious agents that can remain infective for
long periods of time in particles less than 5um and can be
inhaled
AIRBORNE TRANSMISSION
- droplet nuclei or dried residue of droplets
- Airborne droplet nuclei develop when the fluid of
pathogenic droplets evaporates - small and light they may remain suspended in the air for
several hours - can be spread via ventilation systems
AIRBORNE TRANSMISSION
Transfer of infective material
through contaminated items such
as food or water
Vehicle
Transmission by insect or
animal vectors
Dengue, Malaria ( mosquitoes)
Vector-borne
A way an infectious agent
enters a susceptible host
* body orifices
* mucous membranes
* breaks in the skin
Portal of Entry
( Entry Pathway)
Someone who is prone to
infection ( elderly, newborn,
immune-suppressed,
unvaccinated, with acute or
chronic illness)
Susceptible Host
*stopping infections at the source
*preventing contact with substances
from exit pathways
*eliminating means of transmission
*blocking exposure to entry pathways
*reducing or eliminating the susceptibility of potential hosts
Breaking the Chain of Infection
WAYS TO BREAK THE CHAIN OF INFECTION
- Effective hand hygiene procedures
- Good nutrition, adequate rest, and
reduction of stress - Immunization against common
pathogens - Proper decontamination of surfaces and
instruments - Proper disposal of sharps and infectious
waste - Use of personal protective equipment
(PPE) - Use of needle safety devices during
blood collection
WAYS HEALTHCARE INSTITUTIONS
BREAK THE CHAIN
- Infection control programs
- Insect and rodent control
- Isolation procedures
- to protect patients, employees, and visitors from infection
INFECTION CONTROL PROGRAM
- to screen employees for infectious diseases and to require
immunization when needed
INFECTION CONTROL PROGRAM
- to provide evaluation and treatment to health workers who
have been exposed to infections while performing their duty
INFECTION CONTROL PROGRAM
- to provide evaluation and treatment to health workers who
have been exposed to infections while performing their duty
INFECTION CONTROL PROGRAM
- to monitor employees and patients who are at risk of infection
and to collect data from patients and health workers who have
been exposed to such danger
INFECTION CONTROL PROGRAM
effective way to prevent the spread of infection
Hand Hygiene
- Use plain soap and water
When hands are visibly dirty
Before eating and after using the restroom
Routine hand washing
- Use antimicrobial soap or alcohol-based sanitizers
Alcohol-based hand sanitizers when hands are not visibly dirty
Put sanitizer on hands, rub hands together for 20 seconds or
until it feels dry
Hand antisepsis
How many minutes in scrubbing hand at Hand Hygiene?
. Two-minute scrub
- Before and after each patient contact
- Between unrelated procedures on a patient
- Before putting on gloves and after taking them off
- Before leaving the laboratory
- Before going to lunch or on break
- Before and after going to the restroom
- Whenever hands become visibly or knowingly contaminated
SITUATIONS THAT REQUIRE HAND HYGIENE
PROCEDURES
According to WHO guidelines, when performing direct patient
care, hand hygiene should be performed:
- Before touching a patient
- Before performing a clean or aseptic procedure
- After a risk of body fluid exposure
- After touching a patient
- After touching patient surroundings
ROUTINE HANDWASHING TECHNIQUE
Remove jewelry.
1. Stand a few inches from the sink.
2. Turn on the faucet and place hands under the running water.
3. Use soap and work up lather.
4. Make sure to scrub all surfaces.
5. Apply a little friction and rub hands together for at least
15 seconds ( 20 seconds).
6.Rinse the hands from the wrist to fingertips using downward motion.
7. Dry hands using a clean paper towel.
8. Use the paper towel to close the faucet except when it is foot or motion
activated.
Entire handwashing procedure: 1 minute (40-60 seconds)
- Palm to palm to make a lather
- Rub right palm over the back of left hand with interlaced fingers, vice
versa - Palm to palm with fingers interlaced
- Rub the back of fingers to opposing palm with fingers interlocked,
repeat for each hand - Rub rotationally left thumb clasped in right palm, vice versa
- To clean the tips of the fingers, rub rotationally with clasped fingers of
right hand and left palm and vice versa
*alcohol-based antiseptic hand cleaners that contain a
minimum of 60% alcohol
*if the hands are not visibly soiled
*cover all surfaces of the hands, including between the
fingers
*allow to evaporate
*20 to 30 seconds
USE OF ALCOHOL-BASED ANTISEPTIC
HAND CLEANERS
equipment worn to minimize exposure to hazards that cause serious
workplace injuries and illnesses
PERSONAL PROTECTIVE EQUIPMENT (PPE)
“specialized clothing or equipment worn by an employee for protection against
infectious materials” (OSHA)
PERSONAL PROTECTIVE EQUIPMENT (PPE)
Level 1 PPE
surgical mask
Level 2 PPE
– surgical mask, goggles or face shield, gown, gloves
Level 3 PPE -
N95 mask, goggles or face shield, gloves, surgical cap, scrub
suits, gowns (or coveralls), shoe covers
Level 4 PPE –
N95 mask (or PAPR), goggles or face shield, double gloves,
surgical cap, scrub suits, coveralls (Hazmat suit), dedicated shoes, shoe
covers
What are the PERSONAL PROTECTIVE EQUIPMENT (PPE)?
*Gloves
* Laboratory gown
* Face mask/respirators
* Face shields/ goggles
- Wear Long pants and closed-toe shoes
Wear gloves during blood collection and handling of
specimen
* should be worn over the cuffs of the lab gown
DON’T touch surfaces with contaminated gloves
DON’T touch your face or adjust PPE with contaminated
gloves
DON’T reuse disposable gloves
GLOVES
Purpose – patient care, environmental services, others
* Glove material – vinyl, latex, nitrile, others
* Sterile or nonsterile
* One or two pair
* Single use or reusable
* Work from “clean to dirty
GLOVES
contain no latex and powder free
most puncture resistant
have a high level of touch sensitivity
good for extended period of time
work for for high risk situation
resist many chemicals
have a long shelf life
are blue to help identify if the glove
nitrile gloves
fit like a second skin
have a high level of touch sensitive
good for waring and extedned amount of time
work well for high risk
cost effective
lighlt powedered for easing donning
very elastic and strong
latex gloves
no latex
looser fit
short terms, low risk
most economic option
anti static properties
use with non hazardous materials
lighlty powdered
vinyl gloves