Medical Microbiology

Question 1

Name 5 possible infecting agents?

Answer 1

Bacteria
Viruses
Fungi
Parasites
Prions

Question 2

What is a sterile site?

Answer 2

An area of the body that does not naturally contain any micro-organisms.

Question 3

Give some examples of a sterile site?

Answer 3

Blood
CSF
Lungs
Bladder

Question 4

Give some examples of non-sterile sites?

Answer 4

Skin
Nasopharynx
Urethra
Gut

Question 5

What infecting agents are not visible in light microscopy?

Answer 5

Viruses

Question 6

Give some properties of gram stain and microscopy techniques?

Answer 6

Rapid results
Not sensitive
Cant usually identify particular species

Question 7

Give some properties of bacterial culture methods?

Answer 7

Slow process
Sensitive
Culture conditions must be suitable for the expected species.

Question 8

What culture conditions must be controlled in order for bacterial culture to be effective?

Answer 8

Type of media
Atmosphere
Temperature
Duration of incubation

Question 9

What are the 3 sub sections of parasites?

Answer 9

Protozoa
Helminths(worms)
Arthropods

Question 10

Give some examples of how hospitals prevent infection?

Answer 10

Washing hands before/after touching each patient
Swab stethoscope between patients
Patients isolated to a single room.