Nursing Care and Role of Infection Control Nurse
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Infection and Its Occurrence
The infectious process depends on the interaction between an infectious agent, a susceptible host, and the environment. Essential to this interaction is a means of transmission of the agent from an infected host to a susceptible host.
This occurs through direct contact, airborne droplet transmission, and indirect contact. Airborne transmission involves the dissemination of particles suspended in air that contain infectious microorganisms.
When replication of
the infectious agent occurs in the tissues of the host, causing local cellular
injury, secretion of toxins, and/or an antigen antibody reaction that produces
signs and symptoms, infectious disease is present. Communicable diseases are
infectious diseases that may be transmitted from one person (or animal) to
another. Not all infectious diseases are communicable.
Infection and Environment
Infection
control occurs both in the community and within institutions. However, since
1980 increasing emphasis has been placed on hospital-acquired infections.
The CDC has long been involved in the development of guidelines for infection control programs. The Joint Commission on Accreditation of Healthcare Organizations (JCAHO) sets standards for practice and requires infection control committees to recommend and approve surveillance programs based on previous nosocomial infection statistics.
In addition, the Occupational Safety and Health Administration (OSHA) has published a regulatory document titled The OSHA Bloodborne Pathogen Standard. This document requires that all employers of health care workers provide employees with an environment safe from exposure to blood-borne pathogens (US Department of Labor, 1991).
The American Public
Health Association has published a classification system for reporting
communicable diseases that is used by state and national public health
services. The National Nosocomial Infection Surveillance system collects data
from a variety of hospitals nationwide. Reports of findings are published
periodically.
Why Infection Control Is Needed
The purpose of infection control surveillance is to establish and maintain a database that describes the endemic rates of nosocomial infections. Knowledge of endemic rates allows recognition of increased rates of nosocomial infection resulting in clusters or out-breaks.
These data also can be used to prioritize
infection control activities and identify trends such as shifts in prevalent
pathogens or outcomes of hospital-acquired infections. The surveillance process
includes definition of nosocomial infections, systematic gathering of case
findings, and tabulation, analysis, interpretation, and reporting of relevant
data to individuals or groups for appropriate action.
Infection and Its Surveillance
There are three major types of surveillance. Total house surveillance detects and records all nosocomial infections that occur anywhere in the hospital. It is expensive because of the time and personnel required. Priority-directed or targeted surveillance concentrates on specific areas, patient populations, or procedures, depending on the characteristics of the hospital.
Problem-oriented
surveillance is conducted to measure the occurrence of specific infection
problems, such as outbreaks in specific areas of the hospital. Other
surveillance programs may include prevalence surveys or a focus on the
identification of risk factors associated with nosocomial infections.
Why Organism Get Infected
Control of infectious diseases depends on interrupting the interaction between an infectious pathogenic agent, a susceptible person, and the characteristics of the environment. The characteristics of transmission of the organism through direct contact, airborne droplets, and indirect contact are important considerations.
Nosocomial infections are iatrogenic, costly complications of
hospitalization. In order of incidence, the top four nosocomial infections are
urinary tract infections, pneumonia, surgical wound infections, and bacteremia.
Preventive interventions for high-risk patients are the most effective measures
to prevent morbidity and mortality.
Give your opinion if have any.