Extrinsic allergic alveolitis

Question 1

What is the pathophysiology of EAA?

Answer 1

1. Type 3 hypersensitivity reaction

2. inflammation caused by inhalation of fine particles

Question 2

What is acute EAA?

Answer 2

Symptoms appear 4 - 8 hours after exposure to antigen

Question 3

Name 3 symptoms of acute EAA?

Answer 3

1. Shortness of breath
2. Dry cough
3. Fever

Question 4

Name 2 signs of acute EAA?

Answer 4

1. Tachypnea

2. Fine inspiratory crackles

Question 5

Name 4 features of chronic EAA?

Answer 5

1. Weight loss
2. Copulmonale
3. Type 1 respiratory failure
4. Finger clubbing

Question 6

What is EAA?

Answer 6

A a term to describe a group of lung diseases that can occur after exposure to certain allergens ie. Farmer’s lung