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Author Question: Exogenous pyrogens are: a. interleukins. b. endotoxins. c. prostaglandins. d. ... (Read 20 times)

tatyanajohnson

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on: Jun 25, 2018
Exogenous pyrogens are:
 
  a. interleukins.
  b. endotoxins.
  c. prostaglandins.
  d. corticotropin-releasing factors.

Question 2

When a patient has a fever, which of the following thermoregulatory mechanisms is activated?
 
  a. The body's thermostat is adjusted to a lower temperature.
  b. Temperature is raised above the set point.
  c. Bacteria directly stimulate peripheral thermogenesis.
  d. The body's thermostat is reset to a higher level.


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mtmmmmmk

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

ANS: B
Exogenous pyrogens are endotoxins produced by pathogens. They are not interleukins, prosta-glandins, or corticotropin-releasing factors.

Answer to Question 2

ANS: D
Fever (febrile response) is a temporary resetting of the hypothalamic thermostat to a higher lev-el in response to endogenous or exogenous pyrogens. Fever is the result of the body's attempt to raise temperature, not adjust it to a lower level. When fever occurs, the temperature is raised, but the rise is due to a reset of the thermostat. Bacteria do not stimulate peripheral thermogenesis, but their endotoxins do.


tatyanajohnson

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Reply 2 on: Jun 25, 2018
Great answer, keep it coming :)

gcook

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Reply 3 on: Yesterday
Gracias!

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