If a clinician wanted to prevent the effects elicited from a ...

[codyclark]

If a clinician wanted to prevent the effects elicited from a previously administered medication, which type would be of the most use?
 
  1. An agonist
  2. A partial agonist
  3. An antagonist
  4. A partial antagonist

Question 2

Which statement explains the usefulness of the median toxicity dose best?
 
  1. Is useful because drug amounts that are lower than the TD50 will not produce the desired effect.
  2. Is useful for determining the efficacy and potency of a drug.
  3. Is useful because it is not ethical to determine the LD50 in humans.
  4. Is useful because drug amounts that exceed the TD50 will be lethal to half the population.

[pami445]

Answer to Question 1

Correct Answer: 3
Rationale: An antagonist occupies receptor sites, preventing them from being activated by the medication.

Answer to Question 2

Correct Answer: 2
Rationale: Since the LD50 is not ethical to determine in humans, the TD50 is used. The LD50 is used to determine adverse effects in humans, not efficacy or potency.

[codyclark]

Thanks

[pami445]

Welcome