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-
neurotransmitters
monamines, amino acids, cholinergics, peptides
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monamines
dopamine, norepinephrine, seratonin, histamine
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amino acids
gamma-aminobutric acid (GABA)glutamate
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cholinergics
acetylcholine
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peptides
substance P, somatostatin, neurotensin
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dopamine effects
attention, motivation, pleasure, reward
-
norepinepherine works on
alterness
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serotonin works on
obsessions and compulsions
-
dopanine, norepinepherine and serotonin together effect
mood
-
norepinepherine and serotonin together affect
anxiety
-
Pysch drug classifications (5)
- antianxiety and hypnotic drugs
- antidepressants
- mood stabilizers
- anticonvuls
- antsantipsychotic drugs
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antianxiety (axiolytics) and hypnotic drug ex's (5)
- bensodiazepines
- short acting sedative hypnotics
- melatonin receptor agonists
- burspirone
- antidepressants
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antidepressant ex's (6)
- tricyclic antidepressants
- selective serotonin reuptake
- serotonin - norepinephrine reuptake inhibitors
- serotonin - norepinephrine disinhibitors
- monoamine oxidase inhibitors
- other antidepressants
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what diet to be on when on MAOI's
tiramine free
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mood stabilizer and anticonvulsant ex's (7)
- lithium
- valproate
- carbamazepine
- lamotrigine
- gabapentin
- topiramate
- oxcarbazepine
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when taking lithium you must?
monitor closely because of low lethal dose
-
when taking mood stabilizers and anticonvulsants monitor?
can cause?
amount in blood levels, CBC, and liver enzymes
agranulocytosis
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antipsychotics ex's
- conventional - old block dopamine
- atypical - effects are positive and negative - cause less of the Parkinson's looking SE and EPS
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other psychoparmacological drugs to consider (3)
- ADHD
- alzhiemer's disease
- herbal treatments
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effects:
fine muscle movements
integration of emotions and thoughts
involved with decision making
stimulants hypothalamus to release hormones (sex, thyroid, adrenals)
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a decreases in dopamine causes
an increase causes?
Parkinson's disease and depression
schizoprenia and mania
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effects mood, stimulates sympathetic branch of ANS for "fight or flight"
norepinephrine (NE)
-
a decrease in norepinephrine causes?
an increase causes?
depression
mania, anxiety states, schizophrenia
-
effects sleep regulation, hunger, mood states and pain perception and plays a role in aggression and sexual behavior
serotonin
-
a decrease in serotonin causes?
an increase?
deppression
anxiety states
-
plays a role in inhibition, reduces aggression, exitation and anxiety; may play a role in pain perception; effects anticonvulsant and muscle-relaxing properties
GABA
-
a decrease in GABA causes?
an increase?
anxiety disorders, schizophrenia, huntington's chorea
reduction of anxiety
-
plays a role in learning, memory; mood regulation, manic and sexual agression; stimulates parasympathetic nervous system
acetylcholine
-
a decrease in acetylcholine causes
an increase causes
alzheimer's disease, huntington's chorea, parkinson's disease
depression
-
effects alertness, inflammatory response, stimulates gastric secretion
histamine
-
decrease in histamine causes
depression
-
dopamine blockage can cause
movement defects such as - parkinsonian sx, akinesia, akathasia, tardive dyskinesia
- increased prolactin - gynecomastia in men and
- glactorrhea-amenorrhea in women
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examples of atypical antipsychotic drugs
- clozapine (clozaril)
- resperidone (risperdal)
- quetiapine (seroquell)
- olanzapine (zyprexa)
-
few or no EPS sx and target the negative as well as the positive sx or schizoprenia; no motor side effects
atypical antipsychotics
-
adverse effects of lithium:
nervous system and muscle
digestive
cardiac
F&E
endocrine
- tremor, ataxia, confusion, convulsions
- N/V/D
- arrhythimias
- polyuria, polydipsia, edema
- goiter and hyperthyroidism
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antiepileptic drugs
- carbamazepine (tegretol)
- valproic acid/valproate (depakote)
- clonazepam (klonopin)
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negative side effects of clozapine
most dangerous
most common
monitor?
- possibly fatal in 1-2% of pts b/c of potential to suppress bone marrow and induce agranulocytosis
- potential for inducing convulsions in 3% of clients
- drowsiness, sedation, hypersalivation, tachycardia,
- and dizziness
WBC's weekly
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negative side effects of risperidone
motor difficulties, orthostatic hypotension, sedation
-
negative side effects of quetiapine
sedation and weight gain
-
negative SE with valproic acid (depakote)
what test to monitor?
hepatic failure, birth defects
liver function tests
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typical/standard antidepressants - tricyclic antidepressants
- amitriptyline (elavil)
- imipramine (tofranil)
- nortriptyline (pamelor)
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negative side effects from TCA's
serious SE
blurred vision, dry mouth, tachycardia, constipation, sedation and drowsiness, urinary retention, and esphageal reflux, postural -orthostatic hypotension
dysrhythmias, tachycardia, myocardial infarction, heart block
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examples of selective serotonin reuptake inhibitors (SSRI's)
- fluoxetine (prozac)
- sertraline (zoloft)
- paroxetine (paxil)
- citalopram(celexa)
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MAOI's
- Phenelzine (nardil)
- tranylcypromine (parnate)
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foods containing tyramine
aged cheeses, pickled or smoked fish, yeast, beer, wine, soy sauce, bologna, liver, lunchmeat, smoked meats, figs, bananas, avocado, sauerkraut, soybean paste
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atypical/novel antidepressants examples
- trazodone (desyrel)
- nefazodone (serzone)
- venlafaxine (effexor)
- mirtazapine(remeron)
- bupropion (wellbutrin)
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negative side effects of atypical/novel antidepresants
- trazodone - orthostatic hypotension, priapism in males (painful continuous erectile state unrelated to sexual desires or activity)
- venlafaxine- heightened anxiety, N/V and dizziness, abnormal ejaculation and impotence in males
- mirtazapine - sedation, weight gain, dry mouth and
- constipation; antimuscarinic effects are not as strong with this
- bupropion- headache, insomnia, nausea and restlessness and rarely causes sedation, weight gain, or sexual dysfunction
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antianxiety/anxiolytic drugs
- benzodiazepines
- buspirone (buspar)
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Benzodiazepines
- diazepam (valium);
- clonazepam (klonopin);
- alparazolam (xanax);
- flurazepam (dalmane);
- triazolam (halcion);
- lorazepam (ativan)
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side effects of benzodiazepines
- flurazepam and triazolam - hypnotic (sleep inducing) effect
- lorazepam and prazolam - not soporific (sleep producing)
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Benzodiazepine toxicity/overdose
S/S: physical; psychological
Effects
Tx: If awake; Coma
slurred speech, incoordination, unsteady gait, drowsiness, decreased BP; disinhibition of sexual or aggressive drives, impaired judgment, impaired social or occupational function, impaired attention or memory, irritability
cardiovascular or respiratory depression or arrest, shock, coma, convulsions, death
keep awake, induce vomitting, give activated charcoal to aid absorption of drug, VS q 15 min; clear airway - tube, IV fluids, gastric lavage with activated charcoal, frequent VS checks for shock and cardiac arrest after client is stable, seizure precautions, possible hemodiaysis or peritoneal dialysis, flumazenil (romazicon) IV
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caring for a pt with mild to moderate anxiety:
communication
DO NOT
nurse's presence should be..
evaluate...
focus and solve problems with use of open-ended q's, give broad openings, explore and seek clarification,
close off topics, bring up irrelevant topics
calm, willing to listen, recognize distress of pt
past coping mechanisms, help pt to consider alternatives to situations, offer activities that may temporarily relieve tension
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nursing interventions for client with mild to moderate anxiety
- identify anxiety
- anticipate anxiety provoking situations
- use nonverbal language to demo interest
- encourage pt to talk about feelings
- avoid closing off ave of comm that are imp to pt
- clarify
- help pt identify thoughts or feelings before onset of anxiety
- problem solve
- assist in devel alt solutions to prob through role play
- explore behaviors that worked in past
- provide outlets for working of excess enery: walking, exercises
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nursing interventions for pt with severe to panic anxiety
- use firm, short and simple statements
- maintain calm manner
- remain with person in acute severe to panic anxiety
- minimize environmental stimuli; move to quieter setting and stay with client
- use clear and simple statements and repitition
- use low pitched voice, speak slowly
- reinforce reality if distortions occur
- listen for themes in communication
- attend to physical and safety needs when necessary
- SAFETY: physical limits may need to be set
- when a person is constantly moving or pacing, offer high caloric fluids
- assess person's need for meds or seclusion after all other interventions are unsuccessful
-
client and fam teaching for SSRI's
- inform nurse or MD if:
- should not take within 14 days of...
- should not take any new...
- avoid...
- should have what tests regularly?
- report immediately
- DO NOT?
- cause sexual dysfunc, insomnia, anxiety, nervousness, let them know what meds you are on for interactions,
- MAOI
- OTC drugs
- ETOH
- liver and reval func tests and CBC's periodically
- rash, hives, rapid HR, sore throat, diff urinating, fever, malaise, anorexia, wt loss, unusual bleeding, initiatvion of hyperactive behavior, severe HA
- D/C abruptly
-
client teaching for TCA's
- effectiveness begins
- SE that will subside
- avoid
-take when
- forgotten dose
- DO NOT
- begin to work in 7-28 days for; may take 6-8 wks for full effect
- drowsiness, dizziness, and hypotn; after first few weeks
- ETOH
- at bedtime
- take within 3 hrs; otherwise wait for next day
- D/C - will cause N/V, altered HR, nightmares, cold sweat in 2 to 4 days
-
avoid tyramine when taking
MAOI's
-
Hamilton Rating Scale
- scoring
- 0=none
- 1=mild
- 2=moderate
- 3=disabling
- 4=severe, grossly disabling
-
aspects of hamilton rating scale
- anxious mood
- tension
- fear
- insomnia
- intellectual (cognitive)
- depressed mood
- somatic (sensory)
- somatic (muscular)
- cardio sx
- resp sx
- gastro sx
- genitourinary sx
- autonomic sx
- behavior at interview
-
mature defenses
- altruism
- sublimation
- humor
- suppression
emotional conflicts and stressors are dealt with by meeting needs of others
unconscious process of substituting constructive and socially acceptable activity for strong impulses that are not acceptable in their original form
deals with emotional conflicts or stressors by emphasizing the amusing or ironic aspects of conflict or stressor through humor
conscious denial of deisturbing situation or feeling
-
Neurotic (intermediate) defenses
repression
displacement
reaction-formation
somatization
undoing
rationalization
exclusion of unpleasant or unwanted experiences, emotions or ideas from conscious awareness
transfer of emotions assoc. with a perticular person, object, or situation to another person object or situation that is nonthreatening
overcompensation - unacceptale feelings or behaviors are kep out of awareness b developing opposite behavior or emotion
transforming anxiety on an unconscious level to physical sx that has no organic cause
makes up for an act or communication (compulsive handwashing)
justifying illogical or unreasonable ideas, actions or feelings by developing acceptable explanations
-
immature defenses (personality disorders)
- passive aggression
- acting out
- dissociation
- devaluation
- idealization
- splitting
- projection
deals with emotional conflict or stressors by indirectly and unassertively expressing aggression towards others.
deals with stress with actions
disruption in the usually integrated fx of consciousness, memory, identity, or perception of environment
attributing neg qualities to self or others
attributing exaggerated positive qualities to others
inability to integrate pos and neg qualities of oneself or others
rejects emotionally unaceptable person features and attributes them to other people
-
psychotic (severe) defenses
- denial
escaping unpleasant realities by ignoring their existance
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