Infectious Disease 3 Flashcards Preview

8501 Clin Med > Infectious Disease 3 > Flashcards

Flashcards in Infectious Disease 3 Deck (29)
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1

Infectious organisms vary in

- size
- structure
- growth requirements
- ability to stay alive

2

Variances in organisms provide the basis for

- identification
- dx
- tx

3

Types of infectious organisms (categories)

- viruses
- mycoplasms
- bacteria
- rickettsiae
- chlamydia
- protozoa
- fungi
- prions

4

number of viruses

over 400 that affect humans

5

virus components

- RNA or DNA nucleus
- covered in protein

6

Viruses are dependent on host for ____

replication

7

What are mycoplasms?

self-replicating bacteria

8

Mycoplasms require a ____

host

9

Mycoplasms are sensitive to some of these

antibiotics

10

Do bacteria require a host?

no

11

Bacteria vary in these:

- shape
- response to staining
- motility
- tendency toward encapsulation
- capacity to form spores
- oxygen requirements

12

bacteria: shape categories

- rod
- spherical
- spiral

13

bacteria: response to staining

gram +/-

14

What are rickettsiae?

animal pathogens

15

How do rickettsiae infect humans?

insect bite (flea/tick)

16

Chlamydia

- smaller than bacteria, larger than virus
- respond to some antibiotics

17

protozoa: organization

- single cell
- loosely bound group of cells

18

protozoa: parasites (examples)

- roundworms
- flatworms

19

Fungi called _____ in humans

mycoses

20

Fungi

- yeasts
- molds

21

What are prions?

proteins without nucleic acid

22

prions: transmission

transmitted from animals to humans

23

Examples of prions

- Creutzfeldt-Jakob disease (humans)
- mad cow disease (bovine)

24

Major types of nosocomial infections

- UTI
- Bloodstream infection
- pneumonia
- GI and genitourinary

25

UTI caused by

catheter

26

bloodstream infection transmitted from

- IV
- wounds

27

pneumonia transmitted because of

- intubation
- lack of mobility

28

GI and genitourinary infections cause due to

lack of motility

29

causes of nosocomial infections

- surgery
- immunosuppression
- antibiotics
- elderly/sickly
- caregiver hygiene
- normal flora displaced

Decks in 8501 Clin Med Class (102):