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serotonin and norepinepherine neurotransmitters are? w/ depression?
decreased
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serotonin and norepinephrine neurotransmitters are? w/ mania?
increased
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How is MDD classified?
- -depressed mood and/or anhedonia QD x 2wks plus four or more of the following:
- 1) change in appetite, weight, sleep
- 2) fatigue
- 3)poor concentration/indecisiveness
- 4) agitation or retardation
- 5) feelings of worthlessness/guilt
- 6) s/i
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What are some types of the sub-types for MDD?
- 1) catatonic features
- 2) melanchoic features
- 3) atypical features
- 4) Seasonal Affective D/O
- 5) postpartum onset
- 6) psychotic features
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What are the atypical features of MDD?
- -mood reactivity (mood brightens in respnse to external events, like someone visiting pt.)
- -significant weight gain and incr. appetite
- -hypersomina
- -leaden paralysis (feeling weighted down in extremeties)
- -extreme sensitivity to interpersonal rejection (causes significant occupational or social impairment)
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Discuss the psychotic features sub-type of MDD
- * delusions or hallucinations
- -mood congruent: content is consistent w/ typical depressive themes (eg. personal inadequacy, guilt, desease, nihilism, deserved punishment)
-mood incongruent: content not typical of depressive themes (e.g. thought insertion (someone is inserting thoughts into my brain), thought broadcasting (ppl can read my thoughts), delusions of control
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What are the key features of Dysthmic Disorder?
- 1) low grade, rarely remitting depression
- 2) depression that lasts >1 year in children and >2 years in adults
- 3) may have atypical features
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Discuss SSRIs
- Selective Serotonin Reuptake Inhibitors:
- -1st tx of choice
- -can cause serotonin syndrome
- -s/e: wt gain, sexual dysfunction
Celexa, Lexapro, Luvox, Paxil, Prozac, Zoloft
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What is serotonin syndrome?
- - overabundance of serotonin in the CNS
- Symptoms:
- -confusion, diaphoresis, hyperreflexia, ataxia, myoclonus (brief, involuntary twitching of a muscle or a group of muscles), restlessness, shivering, tremor
-occurs when agents are used together w/ MAOI's or St. John's Wort, or other drug combos
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How do Dual Reuptake/Novel Agents work? What are they?
they work on more than 1 NE
- Cymbalta (NE and SE)
- Effexor (NE and SE)
- Remeron (NE and SE)
- Wellbutrin (NE and DA)
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Discuss Tricyclic andidepressants (TCAs).
- TCAs:
- -older, less commonly used bc of anticholinergic effects...caution use in elderly bc they are already dehydrated!
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What are the TCAs? S/E?
- (most generic names end in -ine) Sinequan, Anafranil, Elavil, Endep, Ludiomil, Norpramine, Pertrofane, Pamelor, Surmontil, Tofranil, Vivactil...
- S/E: anticholinergic!
- -dry mouth, blurred vision, constipation, orthostatic hypotension, sexual dysfunction, agranulocytosis, wt. gain/loss, tremor
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Discuss MAOIs antidepressant
- -used rarely
- -can cause hypertensive crisis
- -pt. must be on tyramine restricion diet
- -EMSAM- new transdermal patch, fewer restrictions
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What are the MAOIS
Nardil, Parnate, marplan, Emsam
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Discuss the Hypertensive Crisis that can occur w/ MAOI's
- when meds prevent the breakdown of the monoamine it builds up, resulting in:
- -severe occipital or temporal HA
- -diaphoresis
- -mydriaisis (excessive pupil dilation)
- -nuchal rigidity
- -palpations
- -elevated BP
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What are the food restrictions for a pt. on MAOIs?
- avoid: beer/red wine, aged cheese, dry sausage, fava or italian beans, brewers yeast or Marmite extract, smoked fish, liver, sauerkraut
- avoid in large amounts: ripe avocado, yogurt, ripe bananas, soy sauce
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What are the mood stabalizers?
Lithium, Tegretol, Depakote, Lamictal, (atipical antipsychotics like Zyprexa)
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What is the therapeutic range for lithium? discuss lithium
-therapeutic range = 0.05-1.5, draw serum levels 12 hours after last dose
-don't restrict fluid or salt and use caution w/ diuretis bc
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What are Lithium s/e?
-polyuria, polydipsia, muscle weakness, fine tremor, GI upset, diarrhea, nausea
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What are s/sx of severe Lithium toxicity?
- lethargy, impaired concentraion or confusion, coma, seizures, ataxia, twithching, coarse tremors, dysarthria, nustagmus, nephropathy, (2.5-3.5= very dangerous levels)
- -w/ chronic use= nephrogenic DI and chronic RF, hypothyroidism
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What are some causes of Lithium toxicity?
- -OD
- -kidney disease
- -Na deficiency
- -strange/drastic diets
- -diuretics
- -fevers
- -gastroenteritis
- -dehydration
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Bipolar I
one or more manic or mixed episodes, may be accompanied by psychosis
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Bipolar II
one or more major depressive disorders w/ at least 1 hypomanic episode, psychosis is not present
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Cyclothymic disorder
- -at least 2 years of numerous hypomanic episodes and periods of depressive symptoms (pt. is cycling)
- -specifiers: "rapid cycling" = 4 or more episodes in 12 months, or seasonal pattern
- -either bipolar I or II can be mixed
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How can mania be evidenced in adolesence?
- -psychotic features
- -truancy
- -antisocial behavior
- -drug use
- -school failure
- -possible long-standing behavioral problems (prodromal? {early s/sx of bipolar?})
- -mean onset of 1st manic episode: early 20s
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what is the course of a manic episode?
- rapid onset, often occur after a significant stressor
- episodes last few wks to several months and end abruptly, often followed bya MDD episode
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