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Test 5 1050

3 things pathogens can do to the body> Multiple in large #'s and obstruction, tissue damgage, Secrete exotoxins that cause side effects
Summerize what bacteria is Singel cell highly resistant, need a host
What is an endospore and why is it a problem Highly resistant. Can stay dormant for many yearsm resistant to external inviroment
Give 3 examples of bacterial infection Step, pnueomnia, food poisiong
Summerize what a virus is intercellular parasite, has it's own RNA and DNA. Needs a host
Give 3 examples of a viral disease common cold, cold sores, mono, warts
Summerize what fungi are Eucaryotic, larger than bacteria, ability to grow in 2 forms
What are the e classifications od disease caused by fungi? Superficial, cutaneous, subcutaneous, systematic
Describe whar a protozoan parasite is no cell wall. able to form a cyst for survival outisde the body
Give examples of a typical protozoan infection STD, malaria, trich
What are the steps to establishing an infectious disease Encounter, entry, spread, muiltiplcation, damage, outcome
Encounter either eliminating or colonizing
Spread overcome the immune system, take up residance
Multiplication incubation period
Damage Direct: cell toxins, indirect: alters the metabolism of the host
Outcome Host gains control and eliminates, infection overcomes a host, host and infectious agent live in a state of compromise
What is the chain of infection The human host, infectious microorganism, mode of transmission
Human host favorable inviroment, nutrients and metabolism
Infections Microoraganism bacteria, virus, fungi, parasite
Mode of transmission exogeniously, endogeniously
What is a fomite and give an example inaniamte object that has been in contact with an infectious organism
What is a vector anthropod, misquito, flea, tick
The resorvior site where infectious organism can remain alive people, animals, insects
What is a nosocomial infection hospial infection
What is an iatrogenic infection intervention from a Dr
Five sources of a nasocomial infection medical personal, patient flors, contaiminated hospital enviroment, bloodborne pathogens, invasive procedures
Medical personal direct or indirect contact pass of transfers are endless, active colonizer, transient colonizer- person becomes infected themself
Patient flora microorganisms found in regions of the body exposed to external enviroment- skin, Gi, urinary, respirtatory
Contaiminated hospital enviroment fungal infections, improperly strile equipment, contaiminated Iv solutions
Bloodborne pathogens procedures that allow entrance of microbes- foley, needle, et tube, endoscope
4 ways that constitutes microbial control with a host constitutive defenses of the body, normal microbial flora, chemotherapy, immunization
constitutive defenses of the body the skin protects, sheeding or sweating
normal microbial flora acts as a protective physical barrier, good is good, bad is bad
chemo static drug inhibits growth, cidal drug kills microbes
Immunization vaccines induce immunity
Surgical asepsis sterile, no chance of infection
Medical asepsis reduction of teh # of infectious agents
Define disinfectants chem that alter the enviroment
Antiseptic iodine, betadine, surgidine
How do bacterio static and cydial differ static- stops growth cydial- causes cell killing (chloine, alcohol,hydorgen prioxide)
What chemical methos are used in radiology heat and hand washing
5 methods that determine effectiveness of chemical method of asepsis concentration, temp, time of exposure, type and # of microbes, nature of object being treated
What temp and time are required for moist heat to be effective 121 C/ 250 F for 15 min
What temp and time are required for dry heat 160c/ 320 f for 120 min
what us the most important measn in preventing the spread fo infection standard precaustions
when are standard procautions used bidy fkuid, or body isolation
What are 3 types os transmission based precautions blood or body fluid, or secreations
3 diseases that require airborne precautions chicken pox, rubella, TB
what pt care is necessary for airborne precautons - pressure, wear repiratory precautions
4 diseases that require air droplet precautions mumps, influenza, rubella, adenovirus
diseases that require contact precautions rubella, staph, hep A varicella
Created by: 638323941