Introduction to Microbiology Flashcards Preview

Principles of Disease > Introduction to Microbiology > Flashcards

Flashcards in Introduction to Microbiology Deck (18)
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1
Q

Where can infection be found?

A
  • Essentially everywhere including:
  • dental caries and periodontal disease
  • infectious disease
  • intensive care
  • haemotology and oncology patients
  • children
  • general practice
  • hospital acquired infections (HAI)
2
Q

What are 5 possible infecting agents?

A
  • bacteria
  • viruses
  • fungi
  • parasites
  • prions
3
Q

What specimen types are sterile sites?

A
  • blood
  • CSF
  • lung
  • bladder
4
Q

What specimen types are non-sterile sites?

A
  • skin
  • nasopharynx
  • urethra
  • gut
5
Q

Specimen collection for bacterial culture:

UTI

A

mid-stream urine (MSU)

6
Q

Specimen collection for bacterial culture-:

chest infection

A

sputum:

7
Q

Specimen collection for bacterial culture:

tonsillitis/pharyngitis

A

throat swab

8
Q

Specimen collection for bacterial culture:

wound or site of infection

A

swab or pus (swabs are sent in bacterial transport medium)

9
Q

Specimen collection for bacterial culture:

diarrhoea

A

faeces

10
Q

Specimen collection for bacterial culture:

bacteraemia

A

blood culture

11
Q

Specimen collection for bacterial culture:

meningitis

A

cerebro-spinal fluid (CSF)

12
Q

What aren’t visible under light microscope?

A

viruses

13
Q

What is unstained microscopy used to see?

A

Pus cells (e.g. in urine, CSF)

14
Q

What is stained microscopy used to see?

A

Parasites ( e.g in faeces)

15
Q

What is a gram stain used to see?

A

bacteria and yeasts/fungi

16
Q

What is a ZN stain or auramine stain used to see?

A

mycrbacteria

17
Q

Describe gram staining and microscopy.

A
  • rapid= telephone urgent information
  • not sensitive
  • can’t usually identify particular species
18
Q

Describe bacterial culture.

A
  • slow
  • sensitive
  • culture conditions suitable for the expected species