Pathophysiology: Asthma

What is ventilation?

• The process of taking in air

• When CO2 is expelled from the body

• The movement of air from the atmosphere into and out of the lungs

• Gas exchange in the alveoli

What would be an extrinsic example of asthma?

• Pollen

• NSAIDS

• Infection

• Anxiety

What other inflammatory cells migrate to the area and are activated?

• Eosinophils

• Basophils

• Neutrophils

• All of the above

Which of the following are true in the prevalence of asthma?

• In children, the prevalence is highest in girls

• In adults, it is highest amongst men

• First Nations, Inuit and Metis communities have a higher prevalence of asthma

• In Ontario, asthma has slowly declined as well as the prevalence

When are exacerbations highest for children?

• May

• June

• December

• September

Which of these observations would you NOT expect to see in someone with an asthma attack?

• Use of accessory muscles

• Ability to carry on a normal conversation

• prolonged expiration

• Wheezing