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Author Question: A 30-year-old male is having difficulty breathing and has been spitting blood. He reports that he ... (Read 66 times)

dollx

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on: Jun 25, 2018
A 30-year-old male is having difficulty breathing and has been spitting blood. He reports that he began experiencing this reaction after cleaning his pigeons' cages.
 
  Testing reveals he is suffering from allergic alveolitis. Which of the following is he experiencing?
  a. Serum sickness
  b. Raynaud phenomenon
  c. Antibody-dependent cytotoxicity
  d. Arthus reaction

Question 2

A nurse recalls that an example of an immune-complex-mediated disease is:
 
  a. bronchial asthma.
  b. contact dermatitis.
  c. serum sickness.
  d. rheumatoid arthritis.


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jennafosdick

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Reply #1 on: Jun 25, 2018
Answer to Question 1

ANS: D
The Arthus reaction is a model of localized or cutaneous reactions. Serum sickness-type reactions are caused by the formation of immune complexes in the blood and their subsequent generalized deposition in target tissues. Typically affected tissues are the blood vessels, joints, and kidneys. Raynaud phenomenon is a condition caused by the temperature-dependent deposition of immune complexes in the capillary beds of the peripheral circulation. Antibody-dependent cytotoxicity is a type II form.

Answer to Question 2

ANS: C
Immune-complex disease can be a systemic reaction, such as serum sickness, and related to type III reactions. Bronchial asthma is not an immune-complex-mediated disease and is related to type I reactions. Neither contact dermatitis nor rheumatoid arthritis is related to type III reactions.


dollx

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Reply 2 on: Jun 25, 2018
Gracias!

mohan

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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