Promotion of Infection Control in RCHEs
Transcript of Promotion of Infection Control in RCHEs
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Promotion of Infection Control in RCHEs
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Infection Prevention and Control is Everyone’s
Business
Family/Visitors
CNA/PCA/CMA
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Standard Precautions
Safety Measures
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Infection Control n’ SafetyHospital
Our collective concern….
Long Term Care Facility
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Definitions/Terms used
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Microbes
Microbes are everywhere. They populate the air, the water, the soil, and have even evolved intimate relationships with plants and animals. Microbes that colonize the human body during birth or shortly thereafter, remaining throughout life, are referred to as normal flora.
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Normal flora can be found in many sites of the human body including the skin (especially the moist areas, such as the groin and between the toes), respiratory tract (particularly the nose), urinary tract, and the digestive tract (primarily the mouth and the colon).
Normal Flora (Commensal)
However, areas of the body such as the brain, the circulatory system and the lungs are intended to remain sterile (microbe free).
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Deposition & multiplication of microorganisms
No host responseNo harm
Colonization
Pathogens may inhabit without causing adverse effects
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Deposition & multiplication of microorganisms
Cause adverse effects
Infection
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Infections acquired while the person is in the healthcare institution / LTCF
Healthcare-associated (or ‘nosocomial’) infection
May manifest
- in hospital / LTCF
- after returning home
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Endogenous (autogenous)- own bacterial flora
Exogenous - from a source other than the patient/own
Sources of Infection
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Infection caused by microbes which the patient carries
- normal flora- septic areas
Self-infection or endogenous Infection
e.g. GNB of the intestine are a common cause of wound infection following abdominal surgery
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Infection acquired from
residents staff other persons
Exogenous or Cross-infection
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Respiratory tract
More frequent types of Infections in LTCF
Urinary tract Wounds –Decubitus ulcers
Gastroenteritis
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Major elements leading to institutionally associated infections are:
1. Infectious agents
2. Susceptible hosts
3. Mode of transmission
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The chain begins with the existence of a specific pathogenic microorganism.
Chain of Infection
Infectious agent
Reservoir
Portal of Exit
Mode of Transmission
Portal of Entry
Susceptible Host
HAI: How is it transmitted?
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Routes of Infection
••••
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Microorganisms are transmitted by several routes, and the same microorganism may
be transmitted by more than one route. There are 5 main routes of transmission: -
contact, droplet, airborne, common vehicle and vector-borne.
Precautions (isolation) are designed to prevent transmission of microorganisms by
these routes. The aim of isolation precautions is to decrease the risk of transmission
of microorganisms from infected or colonized patients to other patients, healthcare
workers and visitors in institutions.
Infection Control n’ Safety
air/ droplet food touch water vector
Points of entry
-:
-Look at the ways in which
diseases can be spread:
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HAI: How is it transmitted?
SOURCES
SelfUTI, oral cavity
Cross-infectionother peoplewounds, catheters
Environmentequipmentfood, drugswater, air,etc.
PRINCIPAL ROUTES
Direct extension
Hands/airborne
Contact(etc)
Control: remove sources, block the routes, protect patients
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Precautions are designed to break the transmission of microorganisms by the various routes. Its aim is to decrease the risk of transmission of microorganisms from one to another.
How do we interrupt the chain of infection?
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• hospitals for the sick existed as early as 500 BC
• particularly in Asia, Egypt, Palestine & Greece
• separate rooms, good ventilation, cleaning and hot ovens to ‘sterilize’ instruments (Selwyn 1991)
The concept of Universal precautions was developed in the mid 1980’s as a result of the human immunodeficiency virus (HIV) epidemic. The Center for Disease Control and Prevention (CDC) recognized that there was an urgent need to create strategies
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TRANSMISSION-BASED PRECAUTIONS
At the same time, a new isolation guidelines issued by CDC involve a two-level approach: Standard Precautions, which apply to all clients and patients attending healthcare facilities, and Transmission-Based Precautions, which apply only to hospitalized patients (Garner and HICPAC 1996).
In 1996, the definition and recommendations for Universal Precautions was revised and given the new name of Standard Precautions.
Infection Control n’ Safety
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STANDARD / TRANSMISSION BASEDPRECAUTIONS
The Centers for Disease Control and Prevention (CDC) and the Hospital Infection Control Practices Advisory Committee (HICPAC) revised the "CDC Guideline for Isolation Precautions in Hospitals” with the following objectives:
-to be epidemiologically sound
-to recognize the importance of all body fluids, secretions, and excretions in the transmission of nosocomial pathogens
-to contain adequate precautions for infections transmitted by these routes of transmission
-to be as simple and user friendly as possible and
-to avoid confusion with existing infection control and isolation systems.
CDC, 2004HEALTHCARE INFECTION CONTROL PRACTICES ADVISORY COMMITTEE
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STANDARD / TRANSMISSION BASED PRECAUTIONS
Airborne
Droplet
Common vehicle
Vector-borne
Contact
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Airborne PTB; unknown viruses
Airborne transmission occurs by dissemination of either airborne droplet nuclei (small particle residue which are 5 micrometers or smaller in diameter) of evaporated droplets containing microorganisms that remain suspended in the air for long periods of time.
Airborne and Droplet Infections
TRANSMISSION BASED PRECAUTIONS
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Droplet borne Meningococcal, mumps, rubella
Droplets are generated from the source person primarily during coughing, sneezing, and talking and during the performance of certain procedures such as suctioning and bronchoscopy. Transmission occurs when droplets containing microorganisms generated from infected persons are propelled a short distance (within a 3 feet range) through the air and deposited on the host’s conjunctivae (membrane lining the eyelids and covering the eyeball), nasal mucosa, or mouth….
Airborne and Droplet Infections
TRANSMISSION BASED PRECAUTIONS
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Contact precautions are used when an infectious agent--virus or bacterium--can be spread either by directly touching infected body fluid or an infected site, or by touching equipment contaminated by the infection. Eg
Gastrointestinal, respiratory, skin, or wound infections or colonization with multidrug resistant organisms- MRSA /VRE
TRANSMISSION BASED PRECAUTIONSContact precautions
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Standard Precautions
Standard Precautions combine the major features of Universal Precautions and Body Substance Isolation and apply them to all patients receiving care, regardless of their diagnosis or presumed infection status.
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Standard Precautions
Standard Precautions are designed to reduce the risk of transmission of microorganisms from both recognised and unrecognised sources of infection in the health care setting.
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Handwashing
Barrier Precaution
Sharps
Environmental / Patient Care Equipment
Patient placement
Standard Precautions&
Rationale for Transmission-based Precautions
Components of Standard Precautions:
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Hand Hygiene
The purpose of handhygiene is to prevent transmission of infectious agents from:
Patient to PatientPatient to Health Care workerHealth Care Worker to Patient
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Hand Hygiene
Reinforced since 1840s
Most effective measure to reduce nosocomial transmission
After removal of gloves
If contaminated with blood and body fluids
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ANTISEPTIC HANDWASH
at least 1 minute for an effective hand wash
use an antiseptic cleanser
prior to an invasive procedure(eg urinary catheterisation, placement ofintravascular catheters
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SURGICAL HANDWASH
at least 3 minutes for an effective hand wash
use an antiseptic cleanser
prior to a surgical procedure
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Hand Hygiene Technique
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Effective Hand washing
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Barrier Precaution
Protective barriers reduce the risk of exposure of the health care workers’ skin or mucous membrane to potentially infective materials.
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Barrier Precaution
Examples:
GlovesPlastic apronsMasksGogglesFace shield
Should be appropriately applied to perform the intended task
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All health care workers should take precautionsto prevent sharp injuries caused by:
needlesscalpelsand other used sharp instruments or objects
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Handling of Sharps
Dispose of used needle devices promptly in appropriate sharps disposal containers
Avoid recapping needles.Plan safe handling and disposal before
beginning any procedure using needles
Use appropriate strength instrument
to remove needles, blade and all sharps
Do not bend or manipulate needles
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When you sustain a sharp injury:
Sharps
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1. Immediate Action
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2. Subsequent Action
At the clinic
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BLOOD SPILLS
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STANDARD PRECAUTIONS&
RATIONALE FOR TRANSMISSION-BASED PRECAUTIONS
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Step-down
facility
Recognition of the epidemiology of diseases and its mode of transmission is pivotal for a variety of reasons.
The primary reason - naturally is to prevent the transmission of organisms…
Safety
Infections n’ Precautions
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A risk assessment helps determine what
measures should be used and when to use
them
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Infection Prevention And
Control
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Safe
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Thank You