A patient is exposed a second time to an antigen and subsequently ...

[casperchen82]

A patient is exposed a second time to an antigen and subsequently seeks medical attention with sudden shortness of breath, chest pain, fever, chills, malaise, and a cough that may be productive of purulent sputum.
 
  What is the most likely cause of this pathology?
  a. Acute anaphylactic shock
  b. Acute hypersensitivity pneumonitis
  c. Allergic congestive heart failure
  d. Bronchial asthma

Question 2

In simple coal worker's pneumoconiosis, a chest radiograph that is characterized by multiple small nodular opacities on the chest x-ray film is most likely to be associated with what clinical presentation?
 
  a. Asymptomatic
  b. Cough
  c. Crackles
  d. Shortness of breath

[ladyjames123]

Answer to Question 1

ANS: B
Initial exposure to the antigen ramps up the immune system. Subsequent exposure to the antigen results in the hypersensitivity response. Patients with acute hypersensitivity pneumonitis usually present to medical attention with sudden shortness of breath, chest pain, fever, chills, malaise, and a cough that may be productive of purulent sputum.

Answer to Question 2

ANS: A
Simple coal worker's pneumoconiosis, characterized by multiple small nodular opacities on the chest x-ray film, is asymptomatic.

[casperchen82]

Excellent

[milbourne11]

Gracias!