PSYCH 643 Week 3 Quiz With Upgraded Questions And answers Rated A+

PSYCH 643 Week 3 Quiz With Upgraded Questions And answers Rated A+ • Which of the following statements about drug absorption is trued? Concurrent use of some medications can slow absorption. • A neurotransmitter binds to a receptor, causing electrical impulses to travel the neuron’s axon; it eventually releases the neurotransmitter and repeats the process with a postsynaptic neuron. Which type of neurotransmission does this describe? Classic synaptic neurotransmission • Which of the following statements is true about drug distribution? Protein binding of psychotropic drugs can impact their availability at receptor sites. • Which of the following statements is true about neuronal gene expression? Environmental factors can alter a neuron’s gene expression. • First pass effect refers to the? Metabolism of the drug in the liver, prior to reaching systemic circulation • Matching the following. Pharmacodynamics- Action of drugs on the body Pharmacokinetics- Action of the body on the drugs Axon- The fiber-like part of the neuron that sends information to receiving neurons Ionic filter- Regulates the flow of ions in ligand-gated channels Excitation-secretion coupling- The conversion of an electrical signal to a chemical signal Dendrite- The point of contact for receiving information from neurons in the classical neurotransmission • Use the following CYP450 table to hypothesize drug interactions and their clinical significance for a patient on haloperidol, a conventional antipsychotic, who is prescribed paroxetine, an antidepressant? Haloperidol levels would increase, placing the patient at risk for antipsychotic side effects. • Elimination of a drug can be impacted by all of the following scenarios except? A Mediterranean diet. • Which of the following statements is true about ligand-gated ion channels? Allosteric modulators can enhance or inhibit ion channels when in the presence • Volume neurotransmission refers to? The diffusion of neurotransmitter to nearby neurons. • Retrograde neurotransmissions refers to? The flow of neurotransmitter from postsynaptic neuron to presynaptic neuron • Use the following CYP450 table to hypothesize drug interactions and their clinical significance for a patient on clozapine who carbamazepine, a mood stabilizer? Clozapine levels would decrease, placing the patient at risk for re- emergence of psychotic symptoms. • In ligand-gated ion channels, an? Antagonist, in the presence of an agonist, can return a channel to resting state.