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Author Question: Xanthine derivatives are bronchodilators with which actions in the body? (Select all that apply.) ... (Read 36 times)

bclement10

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on: Jul 23, 2018
Xanthine derivatives are bronchodilators with which actions in the body? (Select all that apply.)
 
  a. Smooth-muscle relaxation
  b. Kidney diuresis
  c. Stimulation of the myocardium
  d. Decrease in respiratory rate
  e. Decrease in heart rate

Question 2

The therapeutic level of theophylline is directly related to the blood levels achieved from the administration of the medication on a regular schedule. Which factors affect therapeutic levels? (Select all that apply.)
 
  a. Variance in rates of absorption
  b. Fluid intake
  c. Metabolism
  d. Age of the patient
  e. Elimination


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mariahkathleeen

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

ANS: A, B, C
The main actions of xanthine-derivative bronchodilators are to relax the smooth-muscle cells in the bronchi, directly produce diuresis of the kidneys, and stimulate the myocardium.

Answer to Question 2

ANS: A, C, D, E
Factors affecting therapeutic theophylline blood levels are variance in rate of absorption, metabolism, and elimination of the drug; differing levels of theophylline in each product; and the patient's age.


bclement10

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Reply 2 on: Jul 23, 2018
Excellent

pangili4

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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