Week 9 NBE Skills Review Flashcards
The simplest and smallest forms of life known
viruses
Do viruses require an electron microscope to see them?
Yes
True or False: Some consider viruses to not be alive because they cannot metabolize their own energy or reproduce themselves without the components of another living cell.
True
Are viruses obligate intracellular parasites?
Yes
Viruses are so small that they pass through biological filters. True/False
True
Most antibiotics work by interrupting the metabolism of bacteria. Does this work on viruses?
No
The basic structure of a virus includes:
-a nucleic acid core composed of 1 or 2 types: either DNA or RNA
-the nucleic acid core is surround by a protein coat called a capsid
-the capsid is composed of individual structural sub-units called capsomeres
-some viruses also have an envelope around the capsid (but not all viruses)
-mature infectious viruses are called virions
-there are numerous ways to classify viruses, but we will do so ‘according to the tissue of preferred growth’
True
Dermotropic diseases
diseases of the skin
Smallpox is a dermotropic disease. True/False
True
Smallpox is caused by what virus?
Variola
How is smallpox transmitted?
via droplet spray or fomites contaminated with droplet spray
Smallpox cause the sudden appearance of what?
a skin rash that progresses through a series of stages that ends with lesions scabbing over and falling off after about 3 or 4 weeks
Has smallpox been eradicated around the world by vaccination?
Yes
Measles are also known as
Rubeola or Red measles
Rubeola
Red measles
How are measles/rubeola/red measles transmitted?
direct contact with nasal or throat secretions of infected individuals
One of the most contagious of the childhood rash diseases
measles/rubeola/red measles
True/False Measles is an acute, highly contagious disease.
True
Where on the body does the rubeola/measles/red measles rash begin and move toward?
the rash begins at the head and moves downward
Which disease manifests with ‘Koplik spots (small white spots) forming on the gums and inside of the cheeks’?
Measles/Rubeola/Red Measles
What does the MMR vaccine stand for?
Measles, Mumps, Rubella
German measles are also known as
Rubella or three-day measles
Which is a milder form of measles: rubella or rubeola?
Rubella (German Measles)
How are the German Measles/Rubella/3-day Measles transmitted?
direct contact with nasal or throat secretions of infected individuals
what color rash is indicative of Rubella?
pale pink rash
What are the symptoms of German Measles?
pale pink rash and slight fever
-the rash begins at the head and moves downward
Which disease is most dangerous in pregnant women during the first trimester?
Rubella
What outcomes could occur when Rubella is contracted by a pregnant women in the first trimester?
miscarriage, stillbirth, or several serious birth deffects