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Author Question: A patient presents to the emergency department (ED) having an acute asthma attack. An ED physician ... (Read 91 times)

anjilletteb

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on: Jul 23, 2018
A patient presents to the emergency department (ED) having an acute asthma attack. An ED physician has ordered a sympathomimetic (epinephrine). The nurse expects what as the therapeutic effect of this drug?
 
  A) Decrease the inflammatory response in the airways
  B) Reduce the surface tension within the alveoli allowing for gas exchange
  C) Inhibit the release of histamine and slow-reacting substance of anaphylaxis (SRSA) to prevent the allergic asthmatic response
  D) Cause dilation of the bronchi with increased rate and depth of respiration

Question 2

In a discussion about cancer, a student asks why the body does not phagocytize a tumor. What would be the instructor's best response?
 
  A) Sometimes tumor cells trick the T cells into allowing them to survive.
  B) Some tumor cells do not develop an antigenantibody reaction.
  C) Some tumor cells develop a strong mast cell reaction.
  D) Tumor cells are too small to be seen by the immune system.


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bpool94

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Reply #1 on: Jul 23, 2018
Answer to Question 1

D
Feedback:
Epinephrine will cause the bronchi to dilate and also cause the rate and depth of respiration to increase. Inhaled steroids decrease the inflammatory response and lung surfactants reduce the surface tension within the alveoli. Mast cell stabilizers inhibit the release of histamine and SRSA to prevent the allergic response. Options A, B, and C are not correct.

Answer to Question 2

A
Feedback:
Neoplasms occur when mutant cells escape normal surveillance of the immune system and begin to grow and multiply. Aging reduces efficiency of the immune system; location of mutant cells can make it difficult for lymphocytes to get to them or that mass can grow so quickly that the tumor becomes too large for the immune system to deal with. Tumors can produce antibodies that cover antigen receptor sites on the tumor and prevent recognition by cytotoxic T cells, or a weak antigenic tumor may elicit a mild response from the immune system and tricks the T cells into allowing it to survive.


anjilletteb

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Reply #2 on: Jul 23, 2018
Both answers were spot on, thank you once again


bpool94

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Reply #3 on: Jul 23, 2018
Great! Please up vote :D


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