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Author Question: A pharmacology student asks the instructor what an accurate description of a drug agonist is. What ... (Read 44 times)

Sportsfan2111

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on: Jul 23, 2018
A pharmacology student asks the instructor what an accurate description of a drug agonist is. What is the instructor's best response?
 
  A) A drug that reacts with a receptor site on a cell preventing a reaction with another chemical on a different receptor site
  B) A drug that interferes with the enzyme systems that act as catalyst for different chemical reactions
  C) A drug that interacts directly with receptor sites to cause the same activity that a natural chemical would cause at that site
  D) A drug that reacts with receptor sites to block normal stimulation, producing no effect

Question 2

The patient is admitted for IV administration of antifungal medication with the plan to discharge the patient on oral medication in a few days. What medication would the nurse be able to administer both IV and orally?
 
  A) Fluconazole
  B) Itraconazole
  C) Posaconazole
  D) Terbinafine


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leannegxo

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

C
Feedback:
Agonists are drugs that produce effects similar to those produced by naturally occurring neurotransmitters, hormones, or other substances found in the body. Noncompetitive antagonists are drugs that react with some receptor sites preventing the reaction of another chemical with a different receptor site. Drugenzyme interactions interfere with the enzyme systems that stimulate various chemical reactions.

Answer to Question 2

A
Feedback:
Fluconazole and voriconazole are available in oral and IV preparations, making it possible to start the drug IV for a serious infection and then switch to an oral form when the patient's condition improves and he or she is able to take oral medications. Itraconazole, posaconazole, and terbinafine are administered only orally.


Sportsfan2111

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Reply 2 on: Jul 23, 2018
Excellent

mammy1697

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Reply 3 on: Yesterday
Gracias!

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