1 psychotic disorders source of answers, unless otherwise noted are dsm-iv-tr or apa practice...
TRANSCRIPT
1
Psychotic Disorders
Source of answers, unless otherwise noted are DSM-IV-TR or APA Practice Guideline on schizophrenia, Supplement to AJP, February,
2004.As of 10July2012
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Dx criteria
Ans. Two or more of five:
1] delusions
2] hallucinations
3] disorganized speech
4] disorganized behavior or catatonia
5] deficit signs of flat affect, apathy, alogia, and so on [“negative” signs].
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Delusions - exception
Q. Under what circumstances can you give a person a dx of schizophrenia when delusions is the only one of the five supra that the pt has?
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Delusions -exception
Ans. When the delusions are “bizarre.” By bizarre, DSM means that the idea could not be true. It could be true, for example, that someone is poisoned, but it could not be true that the pt’s father lives on the planet Jupiter. [Thus, one does not need to dx psychotic disorder NOS when faced with a six month illness that only has bizarre delusions, but can dx “schizophrenia.”]
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Hallucinations - exception
Q. What characteristics of hallucination allows one to dx a person with schizophrenia even when the individual lacks any of the other four signs of schizophrenia listed supra?
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Hallucinations -- exceptions
Ans. Two exceptions:
1] “Hearing” a voice constantly reflecting on the pt’s behavior or thoughts.
2] “Hearing two voices conversing with each other.
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Catatonia v. paranoid
Q. Your pt has the signs of catatonic type and has the signs of the paranoid type, what is the dx?
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Catatonic v. paranoid
Ans. Catatonic Type. The catatonic type trumps all the other types. Disorganized type also trumps paranoid type.
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Deficit signs
• Q. Your pt has developed deficit [negative] signs. Besides being part of schizophrenia, what are two other possibilities common in psychiatric practice?
[These slides avoid the terms “positive” and “negative” and instead use “psychotic” and “deficit.”]
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Deficit signs
Ans. While the list could be long, two will probably reach the exam question:
• -- Parkinsonian signs from the meds.
• -- Depression
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Schizoaffective Disorder
Ans. Someone who has:
• -- signs of a mood disorder
• AND
• -- delusions or hallucinations for at least two weeks when mood disorder is not present. [note, not “schizophrenia,” but “delusions or hallucinations.”]
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Structural Neuroimaging studies
Q. Most consistent structural neuro-imaging finding of these pts with schizophrenia in comparison to general population?
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Functional neuroimaging studies
Q. What has been the most consistent finding as to functional neuroimaging studies in pts with schizophrenia?
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Schizophrenia - death
• Q. People with schizophrenia death rate compared with the general population is?
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Schizophrenia - death
Ans. Die a decade or more earlier. [since 2007, “25 years” has become a common figure.]
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Death rate - why
• Suicide rate is much higher
• Accidents are much more common
• Medical care is more inadequate.
• [Side effects of meds that are used to treat the mentally ill may become the fourth.]
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Suicide risks
• Q. What five suicide risk factors DIFFER from the suicide risk factors of the general populations? That is, if you are doing a risk assessment on a pt with schizophrenia, what findings would increase the suicide risk chances with pt with schizophrenia, findings that would not increase the suicide risk in the general population.
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Suicide – risk factors
Ans. Risk factors that are different from the general population include:
• 1. Young• 2. High socioeconomic status• 3. High IQ• 4. Good scholastic record• 5. High aspirations• [This is a pretty common question on Boards,
consistent with the focus on passing a safe psychiatrist.]
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Proven to reduce suicide in people with schizophrenia
• Q. Med/meds proven to reduce suicide rate?
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Proven to reduce suicide rate
Ans. Clozapine
• [Lithium’s use might be an acceptable answer too, but clozapine has a specific FDA approval for suicidal risk in pts with schizophrenia. Li does not.]
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Suicide - prediction
Ans. Not able to predict.
[This will be correct answer to almost any question as to ability to predict suicide, not just the psychotic disorders.]
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Aggressive behavior
• Q. List three co-morbid disorders that increase risk of aggressive behavior in pts with schizophrenia.
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Aggressive behavior
Ans.
• 1. Substance abuse/dependence [especially PCP, but alcohol, cocaine, and sedatives]
• 2. Neurological disorders
• 3. Antisocial personality
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Prognosis – family hx
• Q. Does a hx of mood disorders in the family hx suggest a poorer prognosis for your pt with schizophrenia?
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Prognosis – mental status
• A. Good prognostic signs are:
• -- Lack of anosognosia
• -- Signs of mood disorder
[If neither of the above two are among the choices, seems confused may be the correct answer.]
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Prognosis – Course of illness
• Q. What course of illness suggests a good prognosis?
List two as to onset.
List one as inter-episode functioning.
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Prognosis - course
Ans. The following suggest a relatively good prognosis:
• -- acute onset
• -- precipitating, traumatic, event
• -- good prior-episode or good inter-episode functioning
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Schizophrenia - stages
• Ans.
• -- Acute
• -- Stabilization
• -- Stable [“maintenance” also used]
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Acute phase
Ans. Beginning with the onset of the episode until the pt reaches what the clinician believes is to be the pt’s baseline.
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Course
• Q. You are treating a pt during his first break, age 21. What are the chances he will never have another schizophrenic episode?
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Stable phase – relapse rate
• Q. Within one year, in a pt who responds adequately to meds in the acute phase, what percentage will relapse if continued on meds? What percentage if meds are discontinued?
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Predicting who doesn’t need meds
• Q. Is there a very reliable way to predict which of your pts with schizophrenia will never need meds again after stable stage is reached?
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Poor prognosis
• Q. What factors suggest a poor prognosis as to treatment response? Use the following outline.
GenderPre-natal factorsPeri-natal factorsPre-morbid functioningSeverity of signs of delusion and hallucinationsDuration of untreated psychosisEPS side effectsFamily setting
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Poor prognosis - 1
• Ans. Any of the following ten factors decreases the chances of a good prognosis:
• 1. male
• 2. pre-natal injury
• 3. peri-natal injury
• 4. severe hallucinations
• 5. [see next slide]
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Poor prognosis - 2
• 5. Severe delusions
• 6. Attentional impairment
• 7. Poor premorbid functioning
• 8. Long duration of untreated psychosis
• 9. Prominent EPS side effects to meds
• 10. High levels of expressed emotions in family setting.
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Schizophrenia – treatmentdeficit signs
• Q. Proven treatment in controlled studies for deficit [“negative”] signs?
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Treatment – deficit signs
• Ans. None proven for deficit [negative] signs. When pt does dramatically improve as to deficit signs, may be a function of the switch of meds as to less side effects, not an improvement in the schizophrenia per se.
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Treatment - psychosocial
• Q. What are the psychosocial approaches to the psychiatric management of schizophrenia?
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Treatment - psychosocial
Ans. • -- supportive psychotherapy• -- CBT• -- group therapy• -- family therapy• -- social skills training• -- supportive employment• -- ACT/PACT
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ACT/PACT
Ans.
• ACT = Assertive Community Treatment
• PACT = Program for Assertive Community Treatment.
• Above is community based, 7x24, in which the team goes to where each pt is, there home, their bar, whatever.
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ACT/PACT
• Ans. two conditions:
• 1] Pt has high risk of hospital readmission.
• AND
• 2] Unable to use usual community-based [e.g., clinic] resources.
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Treatment - benzodiazepines
• Q. Role of benzodiazepines in the management of acute phase of schizophrenia
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Schizophrenia - benzodiazepines
• Ans. In stable phase:
• -- Anxiety
• -- Insomnia
• [while not in Guideline, one can probably assume that if lorazepam was a major success in abolishing catatonia in acute phase, it would be continued.]
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Schizophrenia – beta-blockers
• Ans. Recurrent signs listed below in the face of antipsychotic failure
• -- Hostility
• -- Aggression
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Mood stabilizers
• Ans. In the face of antipsychotic medications failure to prevent RECURRENT:
• -- Aggression
• -- Hostility
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Schizophrenia - ECT
• Ans. Indications are:
• 1. Catatonia [some might say, catatonia after benzodiazepine failure]
• 2. Clozapine failures that have:a. persistent, severe psychosis
b. suicidal
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Relapse
Ans. Causes include:
• 1. non-compliant with treatment
• 2. stressful event
• 3. use of substance or alcohol
• 4. natural course of illness
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Substance Abuse• Q. Excluding smoking, what percentage of
people with schizophrenia have a substance-related disorder?
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Dual dxed pts
• Q. Best psychiatric management of pt with schizophrenia and a substance dependence?
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Dual dxed pt
• Ans. Integrated, comprehensive and carried out by the same team.
[This is politically correct answer for all dual dx pts, not just those with schizophrenia.]
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Treatment of first episode - meds
Ans. All atypicals except clozapine.
[This answer is pre-CATIE. Would be hard to justify this post-CATIE if someone preferred perphenazine.]
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Medication effects on second episode
• Q. How do medications during the first episode differ from latter episodes as to impact on the pt? For example, your pt had good response to risperidone on 1 mg BID during first episode with side effects of dizziness and dry mouth in his first hospitalization. He failed to take meds after your hospital discharge and was readmitted with another episode of schizophrenia. What would you expect if you use risperidone again?
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Medications impact on first episode
Ans. Pt is less sensitive as to the therapeutic effects AND less sensitive as to the side effects. You will probably need to use higher dose that 1 mg BID for the second hospitalization and the side effects might be less prominent.
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Clozapine as initial medication
Q. How does clozapine compare with other antipsychotics for naïve-medication patient? Will it perform better, for example, than chlorpromazine?
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Clozapine as initial medication
Ans. Will not do better. So, in addition to the usual side effect concerns, there is no evidence that clozapine is superior in pts in their first acute episode. Clozapine might be the correct answer in highly suicidal pt.
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Hx of weight gain, hyperglycemia, or hyperlipidemia
• Q. With the hx of weight gain, hyperglycemia or hyperlipidemia with prior antipsychotics, what meds would now likely become first choice if they have not already been used and found wanting?
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Weight gain & med discontinuance
• Q. When one discontinues an antipsychotic that apparently was related to gaining weight, what is the impact of discontinuance of that medication on the pt’s weight? Rapidly return to pre-med weight?
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Weight gain & med discontinuance
Ans. Usually, no further weight gain, but what has been gained will not be automatically loss. If pt has gained 25 pounds, losing that weight is not going to take place simply because the med has been discontinued. Still, some pts have had dramatic weight loss on ziprasidone and aripiprazole after being switched from olanzapine.
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QTc interval
• Ans. Time from beginning of ventricular depolarization through repolarization.
• c = correction for heart rate
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Torsades de pointes
Ans. Prolonged QTc leading to malignant ventricular arrhythmia. Sometimes fatal.
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EPS
• Q. What are the signs of EPS? List three that can occur soon after use of typical antipsychotics.
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EPS
Ans. Signs include:
• -- Parkinsonism
• -- Akathisia
• -- Dystonia
[TD, of course, would be the answer as to long-term use.]
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Prolactin elevation
• A. Haloperidol and risperidone.
[There are others, but these two probably reach the answers.]
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Weight gain and dosage
• Q. For the pt who seems to gain weight on an antipsychotic med, what is the relationship to med dosage? Does it make a difference if the pt is on 20 mg of olanzapine rather than 10?
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Schizophrenia & diabetes
• Q. In medication-naïve people with schizophrenia, what is rate of diabetes?
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Schizophrenia and diabetes
• Ans. Even in medication-naïve, people with schizophrenia are more likely to have elevated glucose levels
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Diabetes risk factors
• Q. What are the five risk factors of a pt with schizophrenia developing diabetes?
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Diabetes risk factors
Ans. Like all of us:
• 1. Weight gain
• 2. Family hx of diabetes
• 3. co-occurring substance abuse/dependence
• 4. Inactivity
• 5. Lack of access to health care
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AIMS
Q. In using antipsychotic meds, how often should you do the AIMS? Two answers:
1] If your pt is on typical.
2] If on atypical.
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SSRIs
• Ans. SSRIs [fluoxetine, paroxetine, fluvoxamine] can inhibit P450 enzymes which can, in turn, elevate antipsychotic blood levels.
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BMI
• Ans. BP, serum lipids and blood glucose. You can also mentioned waist-hip ratio despite overlap with BMI.
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Monitoring for diabetes
• Q. How often to monitor for diabetes of people with schizophrenia who are on an atypical? What to monitor?
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Diabetes - monitor
• Ans. Monitor 1] fasting blood sugar* or hemoglobin A1c q 4 months for a year [i.e., three times the first year], then annually.
*In 2007, some began championing 2 hour post-prandial blood sugar as more meaningful.
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Stabilization phase
• Q. Your pt has completed acute phase. What is the strategy to medicating the stable phase?
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Stabilization phase - meds
• Ans. Continue with what worked in acute phase for at least 6 months, except for changes needed to address any side effects.
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Antipsychotics - general
• Q. In general, antipsychotics meds work relatively well for what symptoms and poorly if at all for what symptoms? Answer as to the major breakdown of symptomotology in schizophrenia.
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Antipsychotics - general
• Ans. Work well for psychotic* signs, poorly for deficit** and poorly for cognitive signs.
*Psychotic = “positive”
**Deficit = “negative”
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Clozapine use
• A. Useful for:
• -- Suboptimal response with at least two antipsychotic meds [at least one of which is an atypical]
• Or
• -- persistently suicidal
• OR
• -- has TD
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Prolactin elevation
Q. Pt has hx of untoward sensitivity to prolactin elevation with typical antipsychotics. Atypical antipsychotic choices for such a pt ?
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Glucose abnormalities
• Q. Which two antipsychotics have the greatest tendency to have glucose abnormalities?
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Lipid abnormalities
• Q. Which two antipsychotics have the highest incidence of lipid abnormalities?
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QTc prolongation
• Q. Which antipsychotics, still on the market, have QTc prolongation. List three in order of severity.
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Time to clarify status
• Q. When using an antipsychotic, about how long does it take to clarify its clinical usefulness, how many weeks before deciding that it is not efficacious?
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Not responding
• Q. If a pt is not responding, in addition to the possibility that you selected a medication with no efficaciousness for that pt, what are some other possibilities?
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Not responding
• Ans. Three:
• -- non-adherence [most likely possibility]
• -- rapid medication metabolism
• -- poor gastrointestinal absorption
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Stable phase - psychosocial
• Q. List 5 psychosocial treatments that have demonstrated effectiveness in stable phase.
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Stable phase - psychosocial
• Ans.
• 1. family interventions: stress-free and stable setting
• 2. assertive community treatment
• 3. skills training
• 4. supportive employment
• 5. CBT
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Supported employment
• Q. Supportive employment includes? List 5 characteristics of successful supportive employment programs for people with schizophrenia.
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Supportive employment
Ans.
• -- focus on competitive employment
• -- pt’s choice
• -- rapid job search
• -- integration of rehabilitation and mental health programs
• -- unlimited time of job support, i.e., indefinite.
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Social skills training
• Q. Social skills training consists of? List four characteristics of successful social skills programs?
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Social skills training
Ans.
• -- behavioral based instruction
• -- modeling
• -- corrective feedback
• -- contingent social reinforcement
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Informed consent
• Q. Usually, of what does informed consent consist relative to your choice of an antipsychotic in a pt hospitalized for the first time?
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Informed consent
• Ans. • -- nausea• -- orthostatic hypotension• -- dizziness• -- dystonic reactions• -- insomnia• -- sedation• [usually leave longer-term effects, like diabetes
and TD, until later as the important immediate goal is to prepare for the immediate untoward events.]
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Akathisia
Ans.
• -- benztropine
• -- trihexyphenidyl
• -- diphenhydramine
• -- amantadine
• -- propranolol
• -- lorazepam
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Parkinsonism
Q. Treat parkinsonism reaction to an antipsychotic with? Practice Guideline list 4.
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Targeted intermittent medicating
• Q. Targeted intermittent medicating means slowly tapering the antipsychotic and awaiting signs of illness before re-medicating. Is this a recommended approach to people with schizophrenia?
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Targeted intermittent treatment
Ans. Not recommended because results 1] in more relapses and 2] more TD.
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Discontinuing meds
• Q. If you do decide to discontinue the antipsychotic medication, what is the recommended dosing rate of discontinuing the meds?
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depression
• Ans. Depressive signs are common is all three phases. Antipsychotics themselves may improve the depressive signs. If the pt fully meets the DSM-IV criteria for “depressive event,” then you should prescribe an antidepressant.
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Obsessive-compulsive signs
Ans. Consider an antidepressant if obsessions and compulsions are still present after antipsychotics have failed to improve these signs.
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Insomnia
• Ans. If antipsychotic is not reaching the insomnia, trazodone, mirtazapine or a benzodiazepine. But first review the dosing schedule of meds already prescribed as there may one about which the pt takes in the AM and is complaining of sedation – or pt takes in the PM and is complaining of being too active. Quetiapine is common HS choice in addition to the three meds listed above.
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Agitation
• Q. You are called to the ward to prescribe something for a very agitated pt. What to consider? Practice Guideline lists four.
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Agitation
• Ans. Practice Guideline list four – haloperidol, ziprasidone, olanzapine and lorazepam. There are probably others that are acceptable. Ziprasidone has a specific FDA approval for agitation in schizophrenia.
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Delusional disorders – criteria
Ans.
1. Nonbizarre delusions.
2. Not part of another disorder, especially doesn’t meet criteria for schizophrenia.
3. Distressing to the pt or has led to pt’s becoming socially, educationally or occupationally dysfunctional.
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Delusional disorder - confrontation
Q. Place of confrontation to the delusion within the physician-patient relationship?
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Delusional disorder - confrontation
Ans. Is not helpful at best and destroys physician-pt relationship at worst.
[First & Tasman, 717]
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Delusional disorder - meds
Ans. While antipsychotics and antidepressants have anecdotal support, exam question may be looking for pimozide.
[First and Tasman, p 717]
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Shared psychotic disordercriteria
Ans. Delusion develops in an individual who has a close relationship with another person who already had that delusion – and not part of another disorder. Commonly, parent and child.
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Shared psychotic disordertreatment
Ans. 1. Separate the two people.2. If the second person is still delusional after a week of separation, begin an antipsychotic.3. Supportive psychotherapy4. Steps to avoid social isolation may help prevent reemergence. Treating the first person is obviously a need and family therapy may be important if within a family.
[First & Tasman, p 719]