Introduction to microbiology Flashcards Preview

Principles of disease JK > Introduction to microbiology > Flashcards

Flashcards in Introduction to microbiology Deck (22):
1

5 possible infecting agents

Bacteria, virus, fungi, parasite, prions

2

4 Sterile sights

Blood, lung, bladder, CSF

3

4 Non sterile sights

Nasopharynx, skin, urethra, gut

4

What 2 things influence the sample taken

-Infection site
- Probable organism

5

Sample for tonsilitis

throat swab

6

Sample for meningitis

CSF

7

Sample of a wound

Swab or pus

8

Sample for chest problems

Sputum

9

Urinary tract sample

Mid stream urine sample

10

Diarrhoea sample

Faeces

11

Bacteraemia sample

Blood culture

12

Is microscopy sensitive or non sensitive?

Non sensitive

13

What do not require use of a stain in microscopy

Parasite or pus

14

Can microscopy identify the pathogen?

No

15

Is culture sensitive?

Yes

16

Non selective agar

Warmed up blood = chocolate
For mycobacteria

17

Selective agar

Macconkey

18

3 Ways to identify the particular species

- Observable characteristics eg pattern of growth
- DNA based tests
- Typing

19

4 ways to Identify virus

- PCR
- Antigen detection
- Serology
- Electron microscopy

20

3 Parasite groups

- Arthropod
- Helminth
- Protozoa

21

Why is it hard to culture parasites?

Complex life cycle

22

How do we detect parasites?

- Microscopy to identify stages ( P,O,C)
- Serology