Understanding Drug Mechanisms and Responses
13. A medication that works by receptor activation to produce a biological response is
an:
A. Agonist
B. Enzyme inhibitor
C. Inverse agonist
D. Antagonist
14. A drug that binds to a receptor but does not fully activate it, producing a muted
biological response, is a(n):
A. Agonist
B. Enzyme inhibitor
C. Partial agonist
D. Antagonist
Understanding Drug Mechanisms and Responses
15. A drug that binds to the same receptor as an agonist, but induces an opposite
biological response, is a(n):
A. Antagonist
B. Inverse agonist
C. Agonist
D. Partial agonist
16. A drug that blocks receptors, inhibiting a biological response, is known as a(n):
A. Partial agonist
91
B. Inverse agonist
C. Antagonist
D. Agonist
17. One of the most common electrolyte abnormalities associated with the use of
psychotropic medication is:
A. Hyperkalemia
B. Hypercalcemia
C. Hyponatremia
D. Hypernatremia
18. A patient who has been stable on his long-acting injectable medication tells the
PMHNP that he would like to quit smoking. What is the best response?
A. “Good for you, I can prescribe you a nicotine patch to help.”
B. “Let us make an appointment as your medication dose may need to be
lowered.”
C. “I will refer you to a smoking cessation support group.”
D. “I am glad you have decided to quit smoking.”
19. A patient has been taking valproic acid for mood stabilization from a manic
episode but is still not sleeping through the night. His last drug level was 50
mcg/mL. The PMHNP notices the patient seems disoriented to time and is flapping
his wrists. What should the PMHNP do next?
A. Give the patient lactulose 20 g PO
B. Draw an ammonia level
C. Increase the dose of valproic acid
D. Augment with an atypical antipsychotic
20. A patient who has been taking paroxetine for 3 years wants to come off due to sexual
side effects. He had gradually tried to wean the dose on his own but noticed
feelings of dizziness, fatigue, headaches, anxiety, and electric-like shocks in his
head. These findings are most consistent with SSRI discontinuation. What would
be a reasonable action for the PMHNP to take? APA