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38 Cards in this Set

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Infection
- ___ is entry into the body of an infectious agent (microorganism) that then multiplies and causes tissue damage
- ___ are microorganisms capable of causing disease
- some microorganisms produce ___ and others release ___
- infection may result in ___ and ___
- infection
- pathogens
- toxins and endotoxins
- illness and disease
Endotoxins
- found in the cell ___ of gram ___ bacteria
- are released when the cell ___
- they stimulate ___, ___, ___, and ___
- cell wall , gram negative
- ruptures
- fever, inflammation, hypotension, changes in blood clotting
Identify 7 practices and/or invasive procedures that make the patient susceptible to nosocomial infections
- lack of handwashing between patient contacts
- improper perineal hygiene (UTI w/ E. coli)
- Foley catheter
- IV's
- Cardiac catheterization
- NG tube
- mechanical ventiliation (endotracheal tube)
Infection
- a ___ infection is in a body part
- a ___ infection involves the whole body
- local
- systemic
Multi Drug Resistant Organisms (MDRO's)
- these organisms can resist the effects of ___
- MDRO's are caused by ___ and ___
- 2 common types of MDRO's are ___ and ___
- antibiotics
- doctors presecribing antibiotics when they are not needed , not taking antibiotics for the length of time prescribed
- Methicillin resistant staphlococcus aureaus (MRSA) , vancomycin resistant enterococcus (VRE)
Prions
- ___ particles that lack ___ and are not inactivated by usual procedures for destroying viruses
- do not trigger an ___
- causes degenerative ___ disease such as varient ___ disease
- protein , nucleic acids
- immune response
- neurologic , Creutzfelt-Jacob disease (mad cow)
Immune Response
- a ___ of the body to substances interpreted as ___
- the immune system is ___ to the type of invador
- the body will produce ___ once it is exposed to a microorganism, in this way, ___ immunity occurs
- as microorganism is known as a ___
- reaction , foreign
- specific
- antibodies , naturally acquired immunity
- antigens
Immunity
- ___ : once exposed to a microorganism the body will produce antibodies against the invader (ex: normal body reation)
- ___ : occurs when a person is given an antitoxin or antiserum containing antibodies or antitoxins that protects the person from the current invasion; temporary protection w/ antibodies that will decrease over time (ex: tetanus antitoxin)
- ___ : occurs when the fetus receives antibodies from the mother through placental blood before birth, can also be acquired through breast feeding
- ___ : is achieved through injection of vaccines; immunizations (ex: shots for flu, polio, Hep B)
- ___ : is provided by an injection with antibodies derived from the infected blood of people or animals. (ex: serum immune globulin for Hep A or mumps)
- naturally acquired immmunity
- passive acquired immunity
- naturally acquired passive immunity
- artificially acquired immunity
- artificially acquired passive immunity
Viruses
- extremely small, seen only with a ___ microscope
- composed of particles of nucleic acid, either ___ or ___, with a ___ coat
- only grow and replicate within a ___; survival and replication depend on ___
- electron
- DNA or RNA , protein
- living cell , host tissue
Viruses
- are ___
- cannot obtain ___, rid their ___, or ___ without a host cell
- the ___ can dry and protect the a virus for years
- 3 examples of old and new viruses
- parasites
- food, waste, reproduce
- protein coat
- old: smallpox, polio, diptheria
- new: HIV, SARS, Ebola
Protozoa
- is a ___ ___ organism belonging to the animal kingdom
- protozoa are ___
~ Examples
- Plasmodium species causes ___
- Entamoeba histolytica causes ___
- other strains are capable of causing ___
- one-celled microscopic
- parasites
- malaria
- amebic dysentery
- diarrhea
Rickettsia
- small ___ or ___ shaped organisms
- rickettsia is a ___
- are transmitted by the bites of ___, ___, and ___ that act as ___
- can multiply only in ___
- causes diseases such as ___ and ___
~ has features of both ___ and ___
- reproduces ___
- uses the host cell for ___, ___, ___, and ___
- resistant to ___ and ___
- round , rod-shaped
- parasite
- fleas , ticks, lice ; vectors
- host cells
- Rocky Mountain Spotted Fever and Typhus
~ bacteria and viruses
- independently
- energy (ATP), vitamins, minerals, nutrients
- heat and drying
Fungi
- tiny primitive organisms of the ___ kingdom that contain no ___
- include ___ and ___
- feed off of ___ and ___
- reproduce by the use of ___
- 2 common fungal infections are ___ and ___
- 4 other disorders or infections caused by fungi
- fungal infections in humans are called ___
- fungal infections are common in patients with ___, specifically Pneumocystis jiroveci
- when the balance of normal flora is altered by ___, a fungal infection may occur
- plant , chlorphyll
- yeast and mold
- living animals and decaying organic matter
- spores
- candiiasis, tinea pedis (athlete's foot)
- thrush, vaginitis, pneumonia, meningitis
- mycoses
- AIDS
- antibiotic therapy
Helminths
- are parasitic ___ or ___
- belong to the ___ kingdom
- ___, which mostly affect children, are the most common helminths worldwide
- ___ and ___ are other types of helminths
- are transmitted by ingesting ___ or by ___ penetrating through skin/mucous membranes
- helminths cause ___ and ___
- worms or flukes
- animal
- pinworms
- roundworms and tapeworms
- fertilized eggs , larvae
- amemia and hydronephrosis
Mycoplasmas
- very small organisms without a ___
- cause infections of the ___ or ___ tract
- example
- cell wall
- respiratory tract or gential tract
- mycoplasma pneumoniae
Chlamydia
- affects the ___ and ___ tracts
- in countries where hygine is poor, Chlamydia trachomatis is responsible for ___, an eye disease that can cause blindness
- in the US, Chlamydia trachomatis causes a sinificant amount of ___ in individuals
- genitourinary tract and reproductive tract
- trachoma
- STI's or STD's
Process of Infection
- an infectious disease is spread from one person to another through means of a continuous ___
- chain of infection is affected by the ___ of the pathogen
- each chain lonk must be present in its ___ for the chain to remain intact and for the infection to be passed on to someone else
- infection chain
- virulence
- proper order
Causative Agent- Link 1
- is any microorganism or biologic agent capable of ___
- pathogenic microorganisims must be ___ or rendered ___ in order to remove this link from the chain
- ___ and ___ are methods used to destroy pathogens
- the most effective means for destroying viruses is through the use of a ___
- causing a disease
- destroyed , harmless
- disinfection and sterilization
- autoclave (produces high heat for 16-20 min)
Reservoir- Link 2
- are places where ___ are found
- precautions used to prevent the spread of infection are ___ and ___
- a good example of a a reservoir is the ___
- spaces such as ___, ___, and ___ could also serve as a reservoir
- conditions such as ___, ___, and ___ make reservoirs conducive to pathogens
- microorganisms
- good hand hygiene , sterile technique
- GI Tract
- lungs, liver, lymph, kidneys
- dark, moist, warm
Portal of Exit- Link 3
- is the ___ by which the pathogens ___
- portal-of-exit transmission can be interrupted by ___ and ___ patients who are infected with pathogens
- ___ and ___ that include the proper handling and disposal of secretions, urine and feces, can prevent transfer of pathogens
- ____ are based on interrupting the mode of transmission by identifying specific secretions, body fluids, tissues, or excretions that might be infective
- the ___ is a good example of an exit (give ex)
- route , leaves its host
- identifying and treating
- isolation techniques and barrier precautions
- transmission-based precautions
- GI system ( E. coli exit form the bowel and enter the urinary tract, causing UTI)
Modes of Transfer- Link 4
- 5 modes of transfer
- 4 examples of daily exposure to a patient's blood
- direct contact w/ body fluids, indirect contact w/ fomites, vectors, droplet infection, spread of infection from one body part to another
- changing surgical dressings, blood transfusions, shots, giving IV's
Portal of Entry- Link 5
- enter the body through 6 ways
- eyes, nose, mouth, trachea, skin, mucous membranes
Susceptible Host- Link 6
- susceptibility can be decreased by teaching ___ and ___
- susceptable hosts can be protected by using ___, ___ and ___
- good health / hygiene habits , immunizations
- aseptic techniques , barrier precautions, and protective isolation
Body Defenses Against Infection
- ___ is the first line of defense against infection
- ___, which line the respiratory tract, trap microorganisms and debris and propel them up an dout of the body with a wavelike action
- the ___ in the liver destroy bacteria that have found their way into the portal circulation
- ___ such as HCl acid easliy destroy ingested pathogens
- intact skin
- cilia
- kupffer cells
- gastric secretions
Body Defenses Against Infection
- ___ is the first line of defense against infection
- ___, which line the respiratory tract, trap microorganisms and debris and propel them up an dout of the body with a wavelike action
- the ___ in the liver destroy bacteria that have found their way into the portal circulation
- ___ such as HCl acid easliy destroy ingested pathogens
- intact skin
- cilia
- kupffer cells
- gastric secretions
Second Line of Defense
- the body automatically ___ in response to an infection
- difference between a viral and bacterial infection
- increases temperature
- Viral: low grade fever, high monocyte count, low neutrophil count
- Bacterial: high grade fever, high neutrophil and monocyte count
Inflammatory Response
- is a localized protective response brought on by ___ or ___
- histamine and serotonin affect the inflammatory response by ___
- pus is ___
- injury or destruction of tissues
- acting on the walls of capillaries making them more permeable
- an accumulation of dead neutrophils; the debris that results from the inflammatory response that may accumulate over the site
Immune Response
- ___ is the body's deliberate production of antibodies or lymphocytes to target specific antigens
- ___ is temporary protection with antibodies that will decrease over time
-
- acquired immunity
- passive immunity
Medical Asepsis
- reducing the ___ or reducing the risk for ___
- used to remove ___
- is referred to as a ___
- number of organisms , transmission of organisms
- some pathogens
- clean technique
Surgical Asepsis
- is the practice of ___ and ___ materials in such a way that prevents the ___ exposure to living microorganisms
- surgical asepsis is referred to as ___
- preparing and handling , patient's
- sterile technique
Gloves
- hand hygiene is performed ___ and ___, because no gloves are 100% protective
- gloves are never to be ___ or ___
- immediately before and after gloving
- reused or washed
Latex Allergy
- may cause ___, local ___, and ___ of the hands, and ___
- ___, ___, and ___ are at risk for developing a latex allergy
- inflammation, purities, anaphylaxis
- multiple surgical procedures; food allergy to bananas, kiwis, or avacados, have had a history of reactions to other latex containging products
Disposals of Sharps
- sharp containers should be replaced when they are ___
- 3/4 full
Contaminated Waste
- must be disposed of in sealed, impermeable, plastic bags marked ___ or ___
- contaminated linens should be handled in a ___ unless all linen in hospital facility is treated as a contaminated ___
- "hazardous waste" or "biohazard"
- like manner , biohazard
Disinfection
- helps eliminate ___ organisms after cleaning
- disinfectant is ___ to the skin
- before disinfection, items must be ___
- disinfection relates to ___ and ___, while antiseptic relates to ___ and ___
- ___ is a solution that destroys bacteria
- ___ is a solution that prevents the growth and reproduction of some bacteria
- some
- caustic
- thouroughly rinsed
- disinfection: surfaces and materials
- antiseptic: skin and tissues
- bactericidal
- bacteriostatic
Sterilization
- is the best method of ___ from equiptment and supplies
- ___ is the method used if materials are susceptible to heat damage
- eliminating
- radiation
Asepsis in the Home Environment
- exposing bedding and other items the patient uses that can not be disinfected to ___ may reduce the number of microorganisms on them
- 6-8 hours of sunshine
Infection Control Surveillance
- ___ is responsible for ensuring infection prevention and control measures are followed
- infection control practitioner