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Psychotic Disorders
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48
Medical
Professional
02/28/2010

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Term
What is the definition of psychosis?
Definition
break from reality involving delusions, hallucinations, or disordered thinking with only minimal evidence of positive sxs (hallucinations or delusions)
Term
What are the 2 main categories of thought disorders?
Definition

1. D/O's of content:

-reflect the patient's beliefs, ideas, and interpretations of surroundings (i.e. paranoid delusions)

2. D/o's of thought process:

-manner in which the patient links ideas  and words together (i.e. tangentiality, circumstantiality, loose assocations)

Term
Define: delusions
Definition
false beliefs that  cannot be altered by rational arguments aren't culturally held beliefs
Term

Delusions:

Paranoid delusion?

Definition
belief that one is being persecuted
Term

Delusions:

ideas of reference?

Definition
beleif that  some event is related to the individual  "Jesus is speaking to me through TV characters"
Term

Delusions:

Thought broadcasting

Definition
belief that one's  thoughts can be heard by others
Term

Delusions:

Delusions of grandeur?

Definition

belief that one has special powers beyond those of a normal person

"I am the allpowerful son of God and I shall  bring my wrath down upon you if I cannot have a smoke"

Term

Delusions:

Delusions of guilt?

Definition

false belief that one is guilty or responsible for something they  could have  had nothing  to do with

"I was responsible for Hurricane Katrina"

Term
Name 5 major types of delusions
Definition

1. Delusions of grandeur

2.  Thought broadcasting

3. Delusions of  Guilt

4. Paranoid delusions

5. Ideas of reference

Term
What are some clinical signs that someone maybe psychotic?
Definition

-Hallucinations

-Delusional Thinking

-Disordered thought process

Term
Define hallucinations. What are the 4  types?
Definition

Def: sensory perception without external stimulus

1. Visual (commonly seen withdrug intoxication)

2. Auditory (most commonly in schizophrenia)

3. Tactile (2/2 drug abuse, alcohol withdrawl)

4.  Olfactory (seen with seizures)

Term
What is an illusion vs. hallucination?
Definition
Illusion is mistaking  an existing sensory stimulus for something  else (i.e. mistaking a shadow for a cat)
Term
What is the differential diagnosis of psychosis?
Definition
-psychosis due to general medical/neurologic condition
-iatrogenic or substance induced
-delirium/dementia
-bipolar
-MDD with psychotic features
-brief psychotic disorder
-schizophrenia
-shizophreniform
-delusional disorder
Term
What are the DSM-4 criteria for psychotic disorder 2/2 a general medical condition?
Definition
1. Prominent hallucinations or delusions
2. Sxs must occur outside of delirium
3. Evidence to support medical cause (i.e. lab tests, history, physical)
Term
What are some causes of psychosis secondary to general medical condition?
Definition
1. CNS disease (MS, cerebrovascular dz, neoplasm, epilepsy)
2. Endocrinopathies (Addison's, Cushing's, hyper/hypothyroidism)
3. Nutritional/Deficiency states: B12, folate, niacin
4. Other (SLE, temporal arteritis, porphyria)
Term
22y.o. college student. Stays in room most of the time and avoids social activities. His friends have noticed he has been very religious for the past 9 months and often talks about the meaning of life. He reveals to you that he is "Jesus"and his purpose is to save the human race.
Definition
Schizophrenia.
-DSM4 Criteria
A. 2 or more of the following must bepresent for 1 month:
1. Delusions
2.Hallucinations
3. Disorganzied speech
4. Grossly disorganized or catatonic behavior
5. Negative symptoms (5As=anhedonia, alogia (poverty of speech), affect (flat); avolition (apathy), Attention (poor))
B.Significant social or occupational functional deterioration
-Duration of entire illness for 6 months(including prodromal or residual periodsinwhich above criteria may not be met)
-Sxs are not due a medical, neurological or substance-induced disorder
Term
What are the 3 phases of schizophrenia?
Definition
1. Prodromal-decline in functioning that precedes the first psychotic episode; social withrawal, irritability
2. Psychotic-hallucinations, delusions, diordered thoughts
3. Residual phase-between episodes of psychosis; marked by negative sxs (flat affect, anhedonia, alogia, avolition, inattention)
Term
What are 5 subtypes of schizophrenia?
Definition
1. Paranoid-
2. Disorganized-
3. Catatonic-
4. Undifferented-
5. Residual-
Term
Paranoid schizophrenia
Definition
high functioning type, older age of onset; must preoccupation with one or more delusions or frequent auditory hallucinations; no predominance of disorganized or catatonic behavior or inappropriate affect
Term
Disorganized type schizophrenia
Definition
Poor functioning type, early onset. Must have: disorganized speech, diorganized behavior, flat or inappropriate affect
Term
Catatonic-type Schizophrenia
Definition
Rare. Must have: motor immobility, excessive purposeless motor activity, extreme negativity or mutism, peculiar voluntary movements or posturing, echolalia, echopraxia
Term
Residual schizophrenia
Definition
prominent negative sxs. (affect, anhedonia, attention, alogia, avolition) with only minimal positive sxs
Term
Define:Echolalia
Definition
repeats words or phrases
Term
Define: Echopraxia
Definition
mimics behavior
Term
Downward drift schizophrenia hypothesis
Definition
people suffering from Schizophrenia are unable to function well in society and hence enter lower socioeconomic groups
Term
What is the postulated pathophysiology of schizophrenia?
Definition
related to excess dopamine activity in certain neuronal tracts
Term
Where in the brain do the positive and negative schizophrenic signs originate?
Definition
positive=mesolimbic
negative=prefrontal cortex
Term
Dopamine pathways blocked by neuroleptics
Definition
-Tuberoinfundibular--blocked by neuroleptics, causing hyperprolactinemia
-Nigrostriatal--blocked by neuroleptics causing EPS
Term
What NTs are affected in Schizophrenia?
Definition
Serotonin-Elevated
NE-Elevated
Dopamine-Elevated
GABA- Low
Term
Good prognostic factors for schizophrenia
Definition
later onset
positive sxs
mood sxs
acute onset
female sex
few relapses
good premorbid functioning
Term
Poor prognostic indicators in schizophrenia
Definition
Male sex
early onset
negative sxs
family hx
gradual onset
poor premorbid functioning
Term
Treatment of schizophrenia (positive sx predominant)
Definition
Neuroleptics:
1.Typicals
-chlorpromazine, thiodazine, haldol
-D2 antagonists
-better for positive sxs
Side effects: EPS, neuroleptic malignant syndrome
Term
Treatment of negative symptom predominant schizophrenia
Definition
Atypical neuroleptics:
-(-apines) clozapine,olanzepine, quietapine; aripiprazole; (-idones) Resperidone,ziprosidone
-antagonize both serotonin and dopamine receptors
-lower incidence of EPS than traditional neuroleptics
Term
Just started my schizophrenic patient on a neuroleptic. How long should Iwait before reassessing?
Definition
4 weeks. if no improvement, move to another drug.
Term
Side effects in high-potency traditional antipsychotics?(Haldol, trifluoperazine)
Definition
EPS:
dystonia
akisthesia
parkinsonism
tardive dyskinesia
-Treatment: antiparkinsonian agents (benztropine, amantidine, benzos)
Term
Side effects seen with low-potency traditional anti-psychotics (chlorpromazine, thioridazine)
Definition
Anti-cholinergic sxs-dry mouth; dry eyes
Term
Tardive dyskinesia
Definition
Caused by high potency anti-psychotics
-darting or writhing movements of the face, tongue,or head
-Tx:discontinue offending agent and substitute atypical neuroleptic; benzos, betablockers, and cholinomimetics may be used shortterm
Term
Confusion, high fever, elevated blood pressure, tachycardia, lead pipe rigidity,elevated CPK, leukocytosis
Definition
NMS; 20% mortality rate
Term
7 weeks, a 25 year-old student has been living in a car; claims that the FBI has put cameras in his dorm room to monitor his every action. Friends say he has been more withdrawn and rarely shows up for lectures. He exhibits looseness of association, poor association, and poor insight, and is concrete to proverbs.
Definition
Schizophreniform disorder Same DSM criteria as schizophrenia, except in schizophreniform disorder, the sxs have lasted between 1-6 months Prognosis: 2/3 progress to schizoaffective Tx: Hospitalization, 3-6 months of antipsychotics, supportive psychotherapy
Term
Patient just tried to light his body on fire. Patient with tears. States that "satan is trying to freeze his body. He never went out during the winter because of this. He is sad to the point of suicide. He has had a few similar episodes over the past several years.
Definition
Schizoaffective disorder
Dx:
Meet criteria for depressive episode, manic episode, or mixed episode WITH delusions and/or hallucinations for 2 weeks in the absence of mood symptoms; AND ysmptoms not due to a general medical condition or drugs
Tx: HOspitalization and supportive psychotherapy, antipsychotics for shorterm control of psychosis, mood stabilizers, antidepressants or ECT for treatment of mood component
Term
Patient with sx criteria for schizophrenia that last from 1 day to 1 month
Definition
Brief psychotic disorder Prognosis: good recovery rate; 20-30% of patients will develop clincal schizophrenia Tx:Brief hospitalization, supportive psychotherapy, course of antipsychoitics, benzos for agitation
Term
Rank prognosis from best to worst:
brief psychotic disorder, schizophreniform disorder, schizoaffective disorder, schizophrenia, mood disorder
Definition
Prognosis from best to worst:
mood disorder> brief psychotic disorder > schizoaffective disorder > schizophreniform disorder> schizophrenia
Term
Two weeks after the death of her son, 30 year old lady with hallucinations of baby crying. Often carries a pillow and sings nursery rhymes to it
Definition
Brief psychotic disorder
Term
48 year-old pathology professor says that the students complain about him to the dean to try to get frid of him. Despite reassurance, he says he "knows" he is correct.
Definition
Delusional Disorder
Dx: Nonbizarre (beliefs that might/could occur in reallife but are not currently true
-does not meet criteria for schizophrenia
-functioning in life not markedly affected
Prog: 50% recover fully
Tx: psychotherapy; antipsychotic meds are often not helpful but may try a course of high-potency traditional antipsychotics
Term
28 year-old woman caring for her schizophrenic husband starts believing his claim that he invented the telephone. When she went abroad for a few months, her beliefs disappeared
Definition
Shared psychotic disorder Dx: patient develops the same delusional sxs as someone he or she is in a close relationship with Prognosis: 40% improve when weirdo is removed from the situation TX: separation, psychotherapy; if sxs do not improve following separtions should prescribe antipsychotics
Term
Headache, fatigue, and visual disturbances in male sudents in africa
Definition
Brain Fag
Term
Sudden unprovoked outbursts of violence of which the person has no recollections in southeast Asia and Malaysia
Definition
Amok
Term
Patient in Asia believes his penis is shrinking and will disappear causing his death
Definition
Koro
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