Schizophrenia, Depression & Anxiety Flashcards
Schizophrenia Spectrum
1% of U.S. population, 1 of 3 hospital beds
-costs $65 billion in treatment, family, and societal cost (including hospitals, institutions, law enforcement, judicial cost)
schizophrenia
catotonia: not moving, appear frozen
paranoia: someone out to get them (someone crazy like hitler)
DSM-V criteria for schizophrenia
at least 2 of the following symptoms last for at lease ONE month
-delusions (you are god-like), hallucinations, disorganied speech, disorganized or catatonic behavior, or negative symptoms (flat affect, avolition, anhedonia)
- decrease in functioning: work, social, self-care
- signs must be present for at least 6 months
- other mood disorders must be ruled out
- disturbance is not substance-induced or caused by physical factors
postive symptoms schizophrenia
delusions, hallucinations, disorganized speech, disorganized or catatonic behavior
negative symptoms schizophrenia
flat effect, lack of motivation, inability to experience pleasure, lack of logical thought
schizophrenia medication
phenothiazine used to deepen anesthia
- chorpromazine (thorazine) used later that same year
- produced a state of calm while maintaining consciousness
- -called this neuroleptic state
Classification of Antipsychotic Drugs
- traditional
- atypical - (2nd generation)
- third generation
Traditional
Thorazine, Compazine, Serentil
- effective at reducing the positive symptoms
- antagonist to dopamine receptors
- also antagonist to acetylcholine, histamine, and norepinephrine
acetylcholine
memory
histamine
sedation
norepinephrine
sedation
traditional side effects
- feeling of anxiety
- neuroleptic-induced parkinson’s
- *tremor at rest, limb rigidity, slowing of movement
- tardive dyskinesia
- *involuntary movements of the face, tongue, trunk, & limbs
- *sucking and smacking of lips and twisting of the tongue
- decrease cognitive function
Atypical
clozapine
- relieves both the “positive” and “negative” symptoms
- no motor effects
- less cognitive impairment
Clozapine side effects
- sedation
- extreme weight gain
- decreased WBC
- immune function; can be fatal
- discontinuation of use cause delusions, hallucinations, hostility and paranoia
Third generation
Aripiprazole (Abilfy)
- works as both an agonist and antagonist to dopamine and serotonin
- helps both the positive and negative symptoms
- no serious side effects to date
A good prevention program should!
- combine school and community based efforts
- link prevention programs with school curriculums
- involve the family and care givers
- integrate system and agencies
- increase funding for researchers and teachers
- learn what is really happening at ground level!
What is the lifetime prevalence of schizophrenia?
1%
How many prescriptions for antipsychotic drugs were filled by U.S. pharmacies in 2011?
55,000,000
The primary mechanism by which all antipsychotic drugs control symptoms of psychosis is by antagonizing ______.
dopamine receptors
______ are false perceptions and ______ are false beliefs.
hallucinations, delusions
Which antipsychotic drug is most likely to be prescribed for children and adolescents?
risperidone
When was the first antipsychotic drug discovered? Was this
drug developed initially to treat psychosis?
Chlorpromazine was discovered in 1951. It was not devel- oped initially to treat psychosis. It was developed as an anesthetic in surgery.
What has been the trend in the number of inpatients in psychiatric hospitals in the United States over the last century?
The population in psychiatric hospitals was increasing until 1951, when chlorpromazine was introduced. After, the number of inpatients declined precipitously (even as the general U.S. population was increasing).
Currently, physicians are more likely to prescribe second- generation antipsychotics instead of first-generation anti- psychotics. Why does this occur? Does the scientific evi- dence support the view that second-generation antipsychotics are superior to first-generation antipsychotics?
The prevailing wisdom among physicians who prescribe second-generation antipsychotics is that there are reduced side effects with these drugs. However, recent large clinical trials have revealed that there appears to be little difference in effectiveness or side effects for either antipsychotic drug class. Both types control symptoms, and both may lead to serious side effects.
Chronic use of antipsychotic drugs can result in a syndrome that includes involuntary movements of the mouth, tongue, trunk, arms, and legs. This syndrome is called
tardive dyskinesia
all antipsychotic drugs decrease ______
dopamine
Which of the following are the most potent D2 receptor antagonists?
first-generation (traditional) antipsychotics