Introduction to Medical Microbiology Flashcards Preview

Principles of Disease > Introduction to Medical Microbiology > Flashcards

Flashcards in Introduction to Medical Microbiology Deck (18)
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1
Q

List the categories of micro organisms that cause disease

A
  • Bacteria
  • Viruses
  • Fungi
  • Parasites
  • Prions
2
Q

What specimen will be used to diagnose a UTI?

A

Mid-stream urine sample

3
Q

What specimen will be used to diagnose a chest infection?

A

Sputum

4
Q

What specimen will be used to diagnose tonsillitis/pharyngitis?

A

Throat swab

5
Q

What specimen will be used to diagnose what pathogen is infecting a wound?

A

Swab of pus/tissue

6
Q

What specimen will be used to diagnose diarrhoea?

A

Stool sample

7
Q

What specimen will be used to diagnose bacteraemia?

A

Blood culture

8
Q

What specimen will be used to diagnose meningitis?

A

CSF sample

9
Q

What does microscopy allow with regards to bacteria?

A

Detection but not identification

10
Q

What does culture allow with regards to bacteria?

A

Identification

11
Q

How do you identify bacteria from culture?

A
  • Colonial appearance

- Growth patterns

12
Q

What are sterile sites?

A

Contain no micro-organisms, commensal or otherwise

13
Q

Give 4 examples of sterile sites

A
  • Blood
  • CSF
  • Bladder
  • Lungs
14
Q

What are non sterile sites?

A

They can contain commensal microbes that may not harm the body but will show up in microscopy and culture

15
Q

Give 4 examples of non-sterile sites

A
  • Skin
  • Nasopharynx
  • Urethra
  • Gut
16
Q

Why are viruses difficult to grow in culture?

A

They only grow inside cells

17
Q

What 3 methods are used to detect viruses?

A
  • Electron microscopy
  • Antigen detection
  • Nucleic acid amplification
18
Q

What can be used to determine immunity to a virus?

A

Serology - diagnostic technique of blood serum