A 10-year-old boy has been brought to the emergency department ...

[rlane42]

A 10-year-old boy has been brought to the emergency department (ED) by ambulance in apparent anaphylaxis after accidentally eating a snack bar that contained peanuts.
 
  The ED nurse should be aware that this patient's signs and symptoms are attributable to:
  A) Dissolution of the basement membranes of epithelium
  B) Rapid activation of the clotting cascade
  C) A massive release of histamine
  D) Activation of the sympathetic nervous system (SNS)

Question 2

A middle-aged woman suffers from debilitating seasonal allergies and has sought care because over-the-counter remedies do not adequately relieve her symptoms.
 
  The clinician's understanding of the patient's problem should include the fact that hypersensitivity is a result of what pathophysiological process?
  A) An exaggerated, inappropriate response to an antigen
  B) Deranged function of killer T cells and helper T cells
  C) Lack of self and non-self differentiation by the immune system
  D) A lack of antibodies against common pathogens

[kbennett34]

Answer to Question 1

C

Answer to Question 2

A