Exam 2 - Nura 221 - Antivirals/ Hematology
Exam Questions With Correct And Revised
Answers
Characteristics of Viruses - answer✔✔•Nonliving agents that infect bacteria, plants, animals
•
•Do not contain
•cellular organelles
•DNA or RNA (have one or the other)
•
•Can be classified as intracellular parasites
•Must be in host cell to replicate and cause infection
•Many viruses infect specific host cell
•
•They do have their own enzymes which can be targeted with medications
What does DNA and RNA do? - answer✔✔store and transmit genetic information
DNA: blueprint
RNA: decodes DNA and relays instructions to cell
What is best treatment for viruses? - answer✔✔Prevention
Are viruses living? - answer✔✔No - they are non-cellular structures
Need a host cell to replicate
Why do most viruses require no pharmacotherapy? - answer✔✔Because they are self-limiting'
(time is limited, will die on their own)
Which viruses require aggressive therapy? - answer✔✔Those that can cause serious disease and
are life-threatening.
like HIV and Herpes (always in you)
Challenges of Antiviral Therapy - answer✔✔Viruses mutate rapidly, and drug becomes
ineffective
Difficult for drug to find virus without injuring normal cells
Each antiviral drug specific to one particular virus
•Antiviral drugs are clinically difficult to make and are very expensive
Broad spectrum vs Narrow spectrum - answer✔✔Broad: effective against many species
Narrow: one restricted group of microorganisms
virus are known for - answer✔✔mutations.. always changing. Can adapt
chicken pox (varicella) - answer✔✔airborne and contact (family of DNA viruses)
herpes family
•Cause repeated blister-like lesions on the skin, genitals, and other mucosal surfaces
Treat for itching - once crusted stop contagious
chicken pox on dark skin - answer✔✔brown skin matters - great resource to see how skin
diseases look on darker skin
When chicken pox leaves and goes dormant... how can it return? - answer✔✔Herpes virus will
return as Shingles
Antiviral goal tx for herpes - answer✔✔•can lower the frequency of acute herpes episodes,
diminish the intensity of the acute disease
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 Brightstars. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $11.49. You're not tied to anything after your purchase.
