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Infection Control

Pathogens do what 3 things well? Multiply in large numbers, cause obstuction and tissue damage, secrete exotoxins
4 categories of pathogens are Bacteria, Virus, Fungi, and Protozoa
Illness due to pathogens depend on what three factors? 1. Environmental State 2. # and stregnth of invading pathogens 3. Ability of host to resist invasion
Cycle of infection 1. Infectionous organism 2.Reserviour of infection 3. Susceptable Host 4. Transmission of disease
Direct contact host is touched by infectious organism
Indirect dz is spread by fomite or vector
Fomite Object that has come in contact with an infected organism
Vector Carrier, animal or insect, that transfers and infection form one host to another
Airborne Contamination dust containing spores, or droplet nuclei
Droplet Contamination When infected person coughs, sneezes, speaks, or sings in vicincity of susceptable host.
Body's defense against infection 1. Natural resistance (skin and mucous membranes) 2. Inflammatory response 3. Acquired immunity
Nosocomial Infection MRSA, C. diff
Medical Asepsis Reduces the probability of infectious organisms being transmitted
Microbial Dilution Process of reducing the # of organisms ex. handwashing, cleanliness, 1:10 bleach sol when cleaning surfaces
Surgical Asepsis (sterilization) complete removal of all organisms and their spores
Methods of sterilization 1. Chemical 2. Dry Heat 3. Gas Sterilization 4. Autoclaving (most common in hospitals)
Standard Precautions 1996- blood, pertain to all body fluids, secretions and excretions.
Airborne precautions RT wears N95 mask, gloves
Droplet Precautions Mask and gloves
Contact Precautions Gloves and Gown
Enteric precautions precautions against fecal material
Portable Radiography of Isolated Patients Clean RT- Handles Equipment Dirty RT- Handles Pt
Portable Radiography of Compromised Patients Clean RT- Handles Pt Dirty RT- Handles Equipment
HIV/AIDS -Human Immunodeficiency Virus/ Acquired Immunodeficiency Syndrome -Sexual contact, blood/body fluid, needles, mother to fetus -brief period of flu-like symptoms -ends in night sweats, oral infections, weight loss, enlarged lymph nodes, & low grade fever
Hepatitis -B,C,D,G transmitted through blood -Symptoms are jaundice, fatigue, abdominal pain, loa, NVD
Tuberculosis Spread through airborne droplet nuclei - symptoms are cough, fever, chills, loa, fatigue, night sweats.
Created by: 1563670857