NUR 2407 Drug actions and definitions
define agonist (Ans- activates a receptor. produces a desired response
define antagonist (Ans- blocks a receptor and prevents a response.
Benzodiazepines (Ans- Antianxiety - enhances the inhibitory effects of GABA in the central nervous system.
Anticholinergic actions (Ans- Sympathetic response, suppresses acetylcholine, (bronchodilator, reduces secretions, increases heart rate, vasoconstriction)
Cholinergic actions (Ans- Parasympatholytic response, mimics acetylcholine (Dialates blood vessels, contracts smooths muscles, lowers heart rate, and increases secreations)
SSRIs (selective serotonin reuptake Inhibitors) (Ans- Antidepressant - inhibits serotonin reuptake, increase serotonin between neuron junctions
SNRIs (seroronin-norepinephrine reuptake inhibitor) 1 / 2
(Ans- Antidepressant - blocks norepinephrine and seroronin reuptake between neuron junctions
tricyclic antidepressants (Ans- block reuptake of serotonin and norepinephrine in the synaptic space, increasing the effect of these neurotransmitters
MAOIs (monoamine oxidase inhibitors) (Ans- Increases the amount of norepinephrine, dopamine, serotonin, and tyramine in the brain intensifying neurotransmitter response.
Lithium Carbonate (Ans- Mood Stabilizer (for Bipolar clients) - produces neurochemical changes, blocking serotonin receptor
mood-stabilizing antiepileptic drugs (AEDs) (Ans- slows Na+ & Ca++ uptake ub the neuron, increasing time to refire.inhibits GABA effect. Inhibits glutamic acid - suppressing CNS excitation
1st generation antipsychotics (Ans- Blocks dopamine, acetylcholine, histamine, and norepinephrine receptors in the brain and periphery
2nd generation antipsychotics (Ans- Blocks seratonin & dopamine receptors. Also block norepinephirne, histamine, and acetylcholine.
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