Final Exam Drug Class Review Questions With Solutions Rated A+ Updated.

A 32-year old man is suffering from long-term abuse of drug X. After leaving the rehabilitation clinic at the conclusion of his 28-day treatment, he laughs and immediately begins using drug X. This time, however, he decides to take it regularly, every four hours, day and night. Drug X has a half-life of 3 hours. How long will take for drug X to reach a steady-state level in his blood? - Answer 12 hours A 56-year old man with fatigue, irritability, loss of interest in his usual pleasurable activities, and incessant complaints about his sore back is diagnosed with depression is prescribed an antidepressant X. A standard starting dose is 10 mg, and he takes this dose for two weeks without improvement, but with annoying side effects. He is switched to another antidepressant Y in a different class, with a standard 50 mg starting dose. Based on what we've been told thus far, we can be fairly certain that - Answer X is more potent than Y A college senior takes a random drug X that arrives by accident on her doorstep. She finds out the hard way that it's psychoactive, because immediately after taking the first pill she experiences full-blown psychosis: delusions (she's convinced she's Millie Bobby Brown), hallucinations (she sees a squirming giant squid on her living room floor), and paranoia (she just knows her roommate is determined to give her coronavirus). After several hours, the psychosis relents, and within a day she's back to normal. Which of the following is the most likely explanation for why the drug's effects faded away? - Answer it was converted to a water-soluble form and excreted in the urine A former M216 student, from the remarkably resilient Covid class of 2020, is touring London with her family in 2035, with the pandemic a distant, bitter memory. As they wait to catch a bus, they suddenly find themselves shrunken to tiny molecular size, swimming around in a synapse in the central nervous system. Not to worry! She guides the group to a reuptake transporter, which she finds on the Correct! - Answer presynaptic neuronal membrane The school play is entitled "The Scintillating Synapse", and your cousin gets the role of neurotransmitter X. Her best friend is chosen to be the receptor for X--this should be fun! During the play, when your cousin (neurotransmitter X) and her best friend (the X receptor) interact, they - Answer are temporarily and weakly attached to each other