URTI Flashcards
What is the name given to an infection of the pharynx?
Pharyngitis
In order for pathogens to invade, what do they have to fight through?
Several physical and immunological barriers
Give 3 examples of physical barriers
Hair
Wet mucus
Cilia
Give 3 examples of viruses and bacteria adapt various mechanisms to resist destruction
Production of toxins
Changing the shape of outer structural proteins
Sticking to mucus membrane
How does the production of toxins aloow the viruses and bacteria resist destruction?
They impair the body’s defence systems
What do the symptoms of URTIs result from?
Inflammatory response mounted by the immune system to the toxins released by the pathogens
Are URTIs self-limiting?
Yes
When should antibiotics be considered for a patient?
If symptoms persist or worsen
In epiglottitis, why should a tongue depressed NOT be used?
As it could cause tongue spasm and respiratory compromise
What is seen as the landmark between the upper and the lower respiratory tract?
The voice box (larynx)
What is the normal number of colds a child should have in their first year?
3-10
How does the rhinovirus work on the body? (cause a cold)
It alters the host-pathogen relationship, bacteria that was formerly in a symbiotic relationship becomes a pathogen
What type of viral infection is otitis media?
Primary, self-limiting infection
Do antibiotics usually work on otitis media?
No
