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Chapter 4
Key Concepts
48
Health Care
Undergraduate 3
09/07/2014

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Term
nosocomial infections
Definition
infections acquired in the hospital
Term
factors that encourage nosocomial infections
Definition
environment (contaminated air), therapeutic regimen (immunosuppresants), equipment (any type of tube that has not been properly sterilized), procedural contaminations (i.e. changing sheets)
Term
factors that increase the potential for nosocomial infection
Definition
age, heredity, nutritional status, stress, inadequate rest and exercise, personal habits, health history
Term
four major groups of microorganisms
Definition
1. bacteria
2. fungi
3. viruses
4. parasites
Term
what is a microorganism called if it is know to produce a disease
Definition
pathogenic microorganism
Term
What must you do to bacteria to see it under a microscope?
Definition
stain it
Term
what are the diseases caused by bacteria
Definition
TB, streptococcal infections, staphylococcal infections, salmonella, lyme disease, gonorrhea, syphilis, and tetanus
Term
What type of environment do fungi require?
Definition
and aerobic environment
Term
disease caused by yeast infection
Definition
thrush
Term
parasites that produce diseases
Definition
protozoa or helminths
Term
diseases caused by protozoa mostly affect what systems
Definition
the GI tract, genitourinal tract, and circulatory system (i.e. malaria)
Term
two types of helminths
Definition
1. flatworms
2. roundworms
Term
what are the most common diseases caused by helminths
Definition
pinworm, and tapeworm
Term
what must viruses do in order to survive and reproduce
Definition
invade a host cell
Term
what are the most common viral diseases
Definition
flu, cold, mumps, measles, HIV, and hep A,B,C,D, and E
Term
how infections are transmitted
Definition
1. an infectious agent must be present
2. reservoir for agent to live and multiply
3. a way to exit reservoir (orifice/open wound)
4. means for transmission (i.e. air/drop)
5. portal for entry into new host
Term
what 2 things can render a persons immune system to infection
Definition
previous infection or vaccination against a particular disease
Term
HIV patients have the right to:
Definition
confidentiality
Term
If you are exposed to HIV you must:
Definition
report the incident to your superior immediately and follow policies of institute and state
Term
how are hep A and E transmitted
Definition
oral-fecal route
Term
how are hep B-D transmitted?
Definition
blood or body fluid contact
Term
what are the symptoms of hepatitis?
Definition
flu-like, fever, muscle aches, and fatigue
Term
what are the symptoms of hepatitis?
Definition
flu-like, fever, muscle aches, and fatigue, followed by jaundiced and eventually liver enlargement due to cell death
Term
How to prevent HVA and HVB
Definition
vaccinations and hand hygiene
Term
How to prevent HVA and HVB
Definition
vaccinations and hand hygiene
Term
Tuberculosis most commonly affects what part of the body?
Definition
The lungs
Term
what are the early symptoms of TB?
Definition
fatigue, loss of appetite, weight loss, and fever (bloody, shallow cough develops later)
Term
What are the symptoms of advanced TB?
Definition
wheezes, rales, tracheal deviation, and pleuritic chest pain.
Term
Preventing TB in health care workers
Definition
yearly testing called a PPD. If you get a positive reaction then you have to get a chest x-ray
Term
types of nosocomial infections
Definition
MRSA, VRSA, VRE
Term
The Joint Commission
Definition
sets requirements for hospital safety, infection control, and patient safety
Term
Occupational safety and health administration
Definition
protects workers and students from work related problems
Term
Medical asepsis
Definition
use of soap, water, friction, and chemicals to eliminate microorganisms
Term
surgical asepsis
Definition
chemically destroying microorganisms completely
Term
how are microbes most commonly spread from one person to another
Definition
by human hands
Term
what assumption should you make about every patient
Definition
that they have an infectious disease
Term
what are the three routes of disease transmission
Definition
airborne, droplet, and contact
Term
which diseases can be spread by airborne route
Definition
SARS, smallpox, TB, vericella, and rubeola
Term
what are the precautions for airborne isolation?
Definition
private room, negative air-pressure vents, N95 masks for workers, surgical masks for everyone else
Term
what diseases are spread through the droplet route?
Definition
influenza, rubella, mumps, pertusis, pneumonias, diptheria, pharyngitis, scarlet fever, menengitis
Term
precautions taken for droplet isolation
Definition
private room, mask within 3 feet proximity
Term
what are the 2 types of contact isolation?
Definition
direct (person to person) and indirect (person to object to person)
Term
diseases transmitted by contact routes
Definition
hep A, scabies, MRSA, VRE, VRSA, ESBL
Term
precautions taken for contact isolation
Definition
private room, gloves, and gowns
Term
patients that need special precautions
Definition
neutropenia, pronounced immune compromise, and transplant recipients
Term
precautions taken for highly susceptible patients
Definition
wash hands, wear gown, gloves, and face mask
Term
before entering an isolation room you must:
Definition
put on mask, put on gown, put gloves on over gown, enter room and introduce yourself, place IR, put on new gloves, make exposure
Term
how long must you wash your hands before entering the NICU?
Definition
three minutes
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