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Principles of Pharmacology Quizlet Questions
Question 1 of 5
The figure below depicts the in vitro log dose-response curves of different drugs acting on the same receptor. Drug Z was able to antagonize the effects of both drug X and drug Y. Which of the following terms best defines drug X?
Correct Answer: B
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 2 of 5
Which of the following was the most likely cause of the patient's disorder?
Correct Answer: C
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 3 of 5
Which of the following terms best defines this drug interaction?
Correct Answer: C
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 4 of 5
What is the immediate consequence of the activation of beta receptors in the 9-year-old boy with mild asthma?
Correct Answer: B
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Question 5 of 5
A 59-year-old Japanese man with atrial brillation presented to his physician complaining of red urine. The man had been receiving a standard dose of warfarin, which is an anticoagulant drug biotransformed by CYP2C9 isozyme. Which of the following was the most likely cause of the patient's disorder?
Correct Answer: C
Rationale: The most likely cause of the patient's disorder is genetic polymorphism of CYP2C9. This enzyme is responsible for metabolizing warfarin, and genetic variations in CYP2C9 can lead to altered metabolism of the drug, resulting in either increased or decreased anticoagulant effects. In this case, the red urine could be a sign of increased bleeding due to decreased metabolism of warfarin by the CYP2C9 enzyme, which is often seen in individuals with genetic polymorphisms affecting this enzyme.