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NURS 572 Ch31
Ch 31 antipsychotics- schizophrenia
Question | Answer |
---|---|
positive symptoms of schizophrenia | exaggerate normal fxn: delusions, hallucinations, paranoia, agitation, combative, disordered speech/thought |
negative symptoms of schizophrenia | decreased normal function: social/emotional withdrawal, lack of motivation, poverty of speech, poor judgement/care |
general MOA conventional first generation | improve positive symptoms more than negative, cognitive |
1st generation receptor action | block dopa D2/D2a. Variably block H-1, Alpha-1, muscarinic |
2nd generation receptor action | MODERATE blockage of dopa D2. Moderate blocker of SEROTONIN 5HT-2. MUCH LESS variable blockage of H-1, Alpha-1, muscarinic |
1st generation ADRs - group 1 | EPS, parkinsonism, akathisia, DARTA, tardive dyskinesia |
1st generation ADRs - group 2 | agranulocytosis, sedation, orthostatic hypoTN, dermatological (sun sensitivity, contact derm) |
1st generation ADRs - group 3 | neuroepileptic syndrome, seizure, sexual dysfunction |
name 3 first generation drugs | chloropromazine, loxapine, haloperidol |
chloropromazine | 1st gen, low potency (orthostatic hypoTN) |
loxapine | 1st gen, medium potency |
haloperidol | 1st gen, high potency |
2nd generation ADRs - group 1 | lower EPS, lower histamine/alpha-1/muscarinic |
2nd generation ADRs - group 2 | agranulocytosis, seizures |
2nd generation ADRs - group 3 | diabetes, weight gain, myocarditis, prolonged QT-c |
name 6 2nd generation drugs | clozapine, rispiradone, olanzapine, quetiapine, ziprasidone, aripiprazole |
clozapine | 2nd gen, agranulocytosis likely, CBC/diff |
rispiradone | 2nd gen, --> EPS > 10mg |
olanzapine | also for bipolar |
quetiapine | CYP450 metab, cataracts, dislipidemia-->CAD risk factor |
ziprasidone - IM | greatest PT-c prolongation potential |
aripiprazole | long acting. partial D2/5HT-1 agonist and pure 5HT-2 antagonist |
which drug must likely SE of orthostatic hypoTN | chlorpromazine (1st gen) |
which are most common dose related SEs 1st gen | anticholinergic, orthostatic hypoTN-alpha1 blocking, sedation-histamine blocking |
which 1st generation ADR is rare but irreversible | tardive dyskinesia (mouth, muscles of mastication chorea-like) |
which atypical/2nd generation greatest potential for QTc prolongation | ziprasidone |
which 2 first generation/conventionals greatest potential for QTc prolongation | chlorpromazine, haloperidol |
which generation of drugs in class most likely to be associated with diabetes | 2nd generation atypicals - all except ariprazole |