Exam (elaborations)
UTMB PATHO Infection test questions and answers(100- accuracy).
- Course
- Institution
UTMB PATHO Infection test questions and answers(100- accuracy).
[Show more]
Content preview
UTMB PATHO: Infection testquestions and answers(100%
accuracy)
define infection - answer The presence, multiplication, and subsequent
injury within a host by another living organism.
define infectious disease - answer the process of sustaining injury or
pathologic damage in response to an infection. Severity can range from
mild to life-threatening
what is colonization? - answer the act of establishing a presence in a
host.
Describe factors that influence risk for infection, including immune
system dysfunction - answer Source: Who, what, where, when
Portal of entry:
◦Transmission in direct proportion to pathogen quantity
◦Penetration, direct contact, ingestion, inhalation
Immune competence:
◦Intact immune system
Cite environmental variables that influence bacterial growth. - answer
Humidity-growth higher in higher humidity
Biofilm- structured community of bacteria that grows on surfaces
Oxygenation- anaerobic vs aerobic as well as facultatively anaerobic
, Adaptability
Growth parameters of bacteria determined by .... - answer nutrition,
temperature, light, humidity, atmosphere
What are the 4 mechanisms of disease production? - answer Toxins,
adhesion factors, evasion factors, invasion factors
How are toxins a mechanism of disease production? - answer They can
alter or destroy the normal function of host cells; mostly produced by
bacteria; cause certain characteristic symptoms of disease
How are adhesion factors a mechanism of disease production? - answer
They give microorganisms the ability to attach and colonize host
How are evasion factors a mechanism of disease production? - answer
They give microorganisms the ability to evade the host's immune system
How are invasion a mechanism of disease production? - answer They give
microorganisms the ability to invade the anatomic barriers and host tissue
Define the terms endotoxin and exotoxin and explain the clinical
significance of each - answer -Endotoxins: lipopolysaccharides in gram
negative bacteria that can lead to septic shock, DIC, acute respiratory
distress syndrome
-Exotoxins: proteins released from bacteria during cell growth that
inactivate or change important host cell structure/function. they can lead
to cell death (ex. cholera causing diarrhea)
Describe methods of direct and indirect transmission of pathogenic
microorganisms. - answer Direct: Physical contact between infected
individual (including bodily fluids) and susceptible individual; can be
classified as horizontal (sexual contact) or vertical (congenital)
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller GUARANTEEDSUCCESS. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $13.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
76710 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now