Psychotic Disorders Flashcards
(38 cards)
When looking at brain imaging for a psychotic patient, the more organic changes you see…
The worse the prognosis
What is the definition of psychosis?
Loss of contact with reality as evidenced by: • Delusion • Hallucinations • Disorganized thoughts and speech • Disorganized or catatonic behavior
Fixed false beliefs despite disproving evidence
Delusions
What are the different types of delusion?
Bizarre vs non-bizarre
Paranoid or persecutory
Grandiose
Reference
Somatic
Sensory perceptions in the absence of stimulus
Hallucinations
What are the different types of hallucination?
Auditory***
Visual
Tactile
Olfactory
Gustatory
What is the most common type of hallucination?
Auditory
If a patient has auditory hallucinations, what should you ask them?
“What do they say?”
“Do they ever tell you to do something specific?”
If a patient has tactile hallucinations, think…
SUD, withdrawal
If a patient has olfactory hallucinations, consider…
Brain tumor with sudden onset
What’s an example of a gustatory hallucination?
“I can taste the poison in my food…”
Examples of disorganized speech
Derailment, tangentiality Incoherence, word salad Neologism Echolalia Blocking, paucity
What is considered disorganized or catatonic behavior?
Activity that is not goal-directed
Inability to complete simple tasks
Immobility
Waxy flexibility***
These symptoms alone are not psychotic but they are often present in psychotic disorders
Negative Symptoms
Decrease or absence of function
Examples of negative symptoms
Apathy
Anhedonia
Asociality
Alogia
_________ antipsychotics may be more effective against negative symptoms
Atypical
What are the different causes of psychosis that you’re gonna wanna put in your differential…
Substance intoxication or withdrawal Med side effect (steroids, stimulants, dopamine agonists, anticholinergics) Delirium Dementia Endocrine (thyroid) CNS infection (syphilis) Epilepsy Vitamin deficiency (B12) Autoimmune (SLE) Huntington’s Wilson’s Psychiatric disorders (psychotic, mood, personality)
Substances that stimulate ________ mimic symptoms of schizophrenia
Dopamine
Examples: Cocaine/Levodopa/Meth
Substances that mimic _____ at the NMDA receptor mimic symptoms of schizophrenia
Glutamate
Examples: Ketamine/PCP
Substances that mimic _______ result in symptoms of schizophrenia
Serotonin
Examples: LSD/Mescaline/Ecstasy
Which NT serves as a regulatory hormone of dopamine?
Serotonin
When might you want to do an EEG for a psychotic patient?
If you think it might be delirium and not psychosis
What are non-bizarre delusions?
Plausible but false (ie infestations, being followed by police)
NOT alien abductions, chips implanted in brain
What disorder:
Non-bizarre delusions
Does not meet Criterion A for Schizophrenia
Hallucinations could be related to delusional theme (bugs)
Psychosocial functioning NOT markedly impaired
Normal thought process
Poor insight
Delusional Disorder