L3 - An Infection Model

Question 1

Which are prokaryotes and which are eukaryotes?

• virus
• parasite
• fungus
• bacteria

Answer 1

Eukaryotes - fungus, parasites

Prokaryotes - bacteria, virus

Question 2

When considering a potential infection in a patient, give three factors we need to consider in regards to the individual e.g. age

Answer 2

Age
Gender
Physiological state - e.g. pregnancy
Pathological state - co-morbidities
Social factors - e.g. IV drug use/sexuality etc

Question 3

What are the three main categories to consider in regards to an individual patient -first is person

Answer 3

1) person
2) time
3) place

Explanation - time - calendar time and relative time.
Explanation - place - where have you been/ where are you currently residing/ working etc

Question 4

What are the four questions you always ask when diagnosing an infection

Answer 4

1) where have you been?
2) what have you been doing?
3) who have you been doing it with?
4) were there any animals involved?

Question 5

Name three mechanisms of infection

Answer 5

Direct spread
Inoculation
Haematogenous - spread by blood 
Ingestion
Inhalation
Vector 
Vertical transmission

Question 6

Give an example of a disease spread by

a) inoculation
b) ingestion
c) inhalation
d) vector

Answer 6

a) HIV
b) food poisoning
c) influenza/tuberlosis/chicken pox
d) dengue fever/malaria/zika virus

Question 7

What is the physiological point of inflammation?

Answer 7

Protects against infection and injury. Works by localising the damage and eliminating the damage to surrounding tissue