A patient presents with poison ivy on the extremities, face, and ...

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A patient presents with poison ivy on the extremities, face, and buttocks after an initial exposure 48 hours ago. This condition is an example of:
 
  a. anaphylaxis.
  b. serum sickness.
  c. delayed hypersensitivity.
  d. viral disease.

Question 2

A 10-year-old male is stung by a bee while playing in the yard. He begins itching and develops pain, swelling, redness, and respiratory difficulties. He is suffering from:
 
  a. immunodeficiency.
  b. autoimmunity.
  c. anaphylaxis.
  d. tissue-specific hypersensitivity.

[SomethingSomething]

Answer to Question 1

ANS: C
The response to poison ivy is a delayed hypersensitivity because it takes up to 72 hours to devel-op. Anaphylaxis is immediate. Serum sickness-type reactions are caused by the formation of im-mune complexes in the blood and their subsequent generalized deposition in target tissues. Poi-son ivy is not a viral disease.

Answer to Question 2

ANS: C
Anaphylaxis occurs within minutes of reexposure to the antigen and can be either systemic (gen-eralized) or cutaneous (localized). Immunodeficiency is a decrease in the immune response. Au-toimmunity is a disturbance in the immunologic tolerance of self-antigens. Tissue-specific reac-tion is an autoimmune reaction.

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Thanks for the timely response, appreciate it

[DylanD1323]

Excellent