Infectious Disease 3 Flashcards
1
Q
Infectious organisms vary in
A
- size
- structure
- growth requirements
- ability to stay alive
2
Q
Variances in organisms provide the basis for
A
- identification
- dx
- tx
3
Q
Types of infectious organisms (categories)
A
- viruses
- mycoplasms
- bacteria
- rickettsiae
- chlamydia
- protozoa
- fungi
- prions
4
Q
number of viruses
A
over 400 that affect humans
5
Q
virus components
A
- RNA or DNA nucleus
- covered in protein
6
Q
Viruses are dependent on host for ____
A
replication
7
Q
What are mycoplasms?
A
self-replicating bacteria
8
Q
Mycoplasms require a ____
A
host
9
Q
Mycoplasms are sensitive to some of these
A
antibiotics
10
Q
Do bacteria require a host?
A
no
11
Q
Bacteria vary in these:
A
- shape
- response to staining
- motility
- tendency toward encapsulation
- capacity to form spores
- oxygen requirements
12
Q
bacteria: shape categories
A
- rod
- spherical
- spiral
13
Q
bacteria: response to staining
A
gram +/-
14
Q
What are rickettsiae?
A
animal pathogens
15
Q
How do rickettsiae infect humans?
A
insect bite (flea/tick)
