Questão 1
Questão
Explain the term: Clinical infection
Questão 2
Questão
Explain the term: Sub-clinical infection
Questão 3
Questão
Explain the term: Iatrogenic infection
Questão 4
Questão
How are respiratory infections transmitted? Select Two answers
Responda
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• Droplets (cough-sneeze)
• Saliva
• Soil-dust
• water aerosols
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Respiratory-salivary route - Sneezing propels mucus droplets from the respiratory mucosa, transmitting flu or cold viruses to a new host.
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Contact transmission - (direct & indirect physical contact)
Questão 5
Questão
Zoonoses is a term used for what kind of disease?
Questão 6
Questão
Explain the term: Endemic
Responda
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– Disease present in a community (region) all the time, usually only clinical in a few
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– Wide spread disease within a community (region), affecting many people but only occasionally present
Questão 7
Questão
Explain the term: Epidemic
Responda
-
– Wide spread disease within a community (region), affecting many people but only occasionally present
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– Disease present in a community (region) all the time, usually only clinical in a few
Questão 8
Questão
Explain the term: Pandemic
Responda
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– Wide spread epidemic, not confined to a single community or region (more than one continent)
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– Wide spread disease within a community (region), affecting many people but only occasionally present
Questão 9
Questão
Explain the term: Sporadic
Responda
-
Widely scattered disease, occurring singly, irregularly, infrequently
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Wide spread epidemic, not confined to a single community or region (more than one continent)
Questão 10
Questão
What is “Epidemiology”?
Responda
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deals with the incidence, distribution, and possible control of diseases and other factors relating to health.
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deals with the incidence, distribution, and possible control of dermatological diseases and other factors relating to skin care.
Questão 11
Questão
Explain the difference between Morbidity and Mortality
Responda
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• Morbidity
– Number made ill by infective agent
• Mortality
– Number of deaths caused by infective agent
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• Morbidity
– Number of deaths caused by infective agent
• Mortality
– Number made ill by infective agent
Questão 12
Questão
Explain the difference between Incidence and Prevalence
Responda
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• Incidence
– Number of new cases over specific period
• Prevalence
– Number of cases (infected or diseased) at a given time (old and new cases)
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• Incidence
– Number of cases (infected or diseased) at a given time (old and new cases)
• Prevalence
– Number of new cases over specific period
Questão 13
Questão
What factors influence the spread of disease in a community? Select Three answers
Responda
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• Virulence of the pathogen
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• Population susceptibility
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• Pathogen transmission mode
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• Education and awareness campaigns to the general public
Questão 14
Questão
List four ways of preventing the spread of disease in a community.
Responda
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• Immunization
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• Health personnel and community workers
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• Educate the public
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• Proper treatment of water supplies
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• Complete segregation by class
Questão 15
Questão
Which disease of the following disease type would most likely spread quickly through the Perth community and why?
Questão 16
Questão
What are the two branches of the immune system?
Responda
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Innate and Adaptive
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Direct and Indirect
Questão 17
Questão
How does skin protect against bacteria?
Responda
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Intact external barrier, NF, secretions
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Normal flora eradicates the majority of bacteria
Questão 18
Questão
What white blood cells (WBC) types are phagocytic? Select Four
Responda
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Neutrophils
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Basophils
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Eosinophils
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Monocytes
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T cells
Questão 19
Questão
What type of white blood cell (WBC) is mainly involved in the adaptive immune system?
Questão 20
Questão
What antibody types are involved in the primary immune response?
Questão 21
Questão
What antibody types are involved in the secondary immune response?
Responda
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IgG (Immunoglobulin G)
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IgM (Immunoglobulin M)
Questão 22
Questão
What type of lymphocyte is involved in cell mediated immunity?
Questão 23
Questão
List the ways antibodies fight infection
Responda
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• Antigens stimulate the generation of antibodies
• Antibodies have specific binding (variable region) regions to specific antigens
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• Antigens stimulate the generation of lymphocytes
• Antibodies have specific binding (variable region) regions to specific antigens
Questão 24
Questão
List the antibody isotypes
Responda
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• IgG
– Monomer, most abundant in serum
– largest amount, long term immunity, can cross placenta
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• IgA
– Monomer in serum, dimer in saliva and secretions, most abundant total
– saliva and mucosal surfaces, tear, nasal fluids, milk
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• IgM
– Pentamer, primary response
– first Ab to appear during an infection
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• IgE
– Monomer, stem binds mast cells, basophils and eosinophils causing release if granules
– anti-parasite, allergy
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• IgD
– Monomer, attached to B cells, antigen receptor for activation
– largest Ab - Ag receptor on B cells
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• IgR
– Monomer, most abundant in serum
– largest amount, long term immunity, can cross placenta
Questão 25
Questão
What are the 4 cardinal signs of inflammation and how do they come about?
Responda
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pain
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heat
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swelling
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redness,
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initiation of Chemical Mediators such as Increased vaso-dilation and increased capillary permeability
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fever
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initiation of Chemical Mediators such as Increased vaso-constriction and decreased capillary permeability
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nausea