Acute Psychosis Flashcards
What % of the population suffers from Psychosis
What % Schizophrenia
1% Psychotic
0.4% Schizophrenic
What are the five domains of Psychosis
- Positive Symptoms
- Negative Symptoms
- Affective Symptoms
- Aggressive Symptoms
- Cognitive Symptoms
What is required under the DSM-5 criteria to diagnose Schizophrenia?
A. Two or more of the following: each present for a significant time within a month
- Delusions
- Hallucinations
- Disorganised speech
- Grossly disorganised or catatonic behaviour
- Negative Symptoms
B. Level of defunctioning in one or more of the major areas in comparison to prior to symptoms
C. continuous signs of disturbance over 6 months
D. Other psychotic diagnosis ruled out
E. Not attributable to a substance
Positive symptoms of psychosis are?
- Hallucinations
- Delusions
- Ideas of Reference
- Delusions of Reference
- Illusions
- Overvalued ideas
- Derealisation
- Depersonalisation
Definition of Hallucinations and Delusions?
Hallucinations: “a perception experienced in the absence of stimuli”
Delusions: “Fixed false belief not in keeping with that persons cultural norm”
- may be persecutory, religious, erotomanic, grandiose, bizarre, etc
Negative Symptoms of Schizophrenia?
(all A’s))
- Attention
- Alogia
- Avolition
- Anhedonia
- Asociality
- Affective Disturbance
What is the lifetime prevalence of a psychotic disorder.
What is the incidence of Schizophrenia?
3% will have the disorder forever, 2/3 make excellent recovery
Schizophrenia:
- 15/100,000
- Lifetime Prev: 0.5-1%
- Peak onset teens-thirties
Summary of the Phases of Psychosis
- Phase I: Generalised risk factors present
- Phase II: At risk mental state with decline
- Phase III: Untreated Psychosis (delusions, hallucinations, thought disorder)
- Phase V: Recovery, relapse remission (some +/- symptoms still there)
Describe the different ways one could have disorganized thinking (formal thought disorder)
- Derailment of ideas/loose association
- Tangential Thinking
- Word Salad
Grossly disorganized or abnormal motor behavior may manifest itself in a variety of ways, such as …
- Child like silliness
- Agitation
- Catatonia
What is Catatonia
a marked decrease in reactivity to the environment.
- Resistance to instructions (negativism);
- Maintaining a rigid, inappropriate or bizarre posture; to a complete lack of verbal and motor responses (mutism and stupor).
- Purposeless and excessive motor activity without obvious cause (catatonic excitement).
- Other features are repeated stereotyped movements, staring, grimacing, mutism, and the echoing of speech.
If someone has Catatonia, does this mean they have Schizophrenia?
No.
Although catatonia has historically been associated with schizophrenia, catatonic symptoms are nonspecific and may occur in other mental disorders (e.g., bipolar or depressive disorders with catatonia) and in medical conditions (catatonic disorder due to another medical condition).
