1- Psychosis, Delusions and Hallucinations

Source: https://app.lecturio.com/#/lecture/c/7526/9050/33018

Correct answer: B. A break from reality involving delusions, hallucinations, and disorganized thinking

Explanation:
Psychosis refers to a break from reality, classically involving delusions, hallucinations, and disorganized thinking. It is not limited to hallucinations alone, nor is it a mood disorder.

Psychosis is best defined as:

A. A mood disturbance with loss of motivation
B. A break from reality involving delusions, hallucinations, and disorganized thinking
C. A condition characterized only by hallucinations
D. A culturally accepted belief system

Correct answer: C. A fixed, false belief not explained by cultural background

Explanation:
Delusions are fixed and false beliefs, not amenable to reason, and not culturally sanctioned. Option D describes an illusion, not a delusion.

Which of the following best characterizes a delusion?

A. A belief that is unusual but culturally accepted
B. A belief that improves when logical reasoning is applied
C. A fixed, false belief not explained by cultural background
D. A misinterpretation of a real external stimulus

Correct answer: C. Persecutory delusion

Explanation:
This is a persecutory delusion, a subtype of paranoid delusions, involving beliefs of being harassed, followed, or harmed by others.

A patient states, “My classmates are ganging up on me and want to harm me.” This belief is best classified as:

A. Delusion of reference
B. Grandiose delusion
C. Persecutory delusion
D. Thought broadcasting

Correct answer: C. “The news anchor is sending me secret messages.”

Explanation:
An idea of reference is the belief that neutral events (e.g., TV, radio) are personally directed at the individual.

Which statement best illustrates an idea of reference?

A. “The FBI is monitoring my phone calls.”
B. “I can hear your thoughts.”
C. “The news anchor is sending me secret messages.”
D. “I am responsible for a natural disaster.”

Correct answer: C. One’s thoughts are audible to others

Explanation:
Thought broadcasting refers specifically to the belief that others can hear one’s thoughts, even without verbal expression.

Thought broadcasting is defined as the belief that:

A. One’s thoughts are controlled by others
B. One can read other people’s minds
C. One’s thoughts are audible to others
D. Thoughts are inserted by an external force

Correct answer: B. “I have special powers and should rule the world.”

Explanation:
Grandiose delusions involve inflated self-worth, power, knowledge, or identity beyond reality.

Which statement best represents a grandiose delusion?

A. “My body is infested with parasites.”
B. “I have special powers and should rule the world.”
C. “Everyone is plotting against me.”
D. “I caused my aunt’s illness.”

Correct answer: C. Delusion of guilt

Explanation:
Delusions of guilt involve false beliefs of responsibility or blame for events the individual did not cause.

A patient insists they are responsible for a relative’s illness despite medical evidence to the contrary. This is an example of:

A. Somatic delusion
B. Grandiose delusion
C. Delusion of guilt
D. Persecutory delusion

Correct answer: B. “A famous actor is secretly in love with me.”

Explanation:
Erotomanic delusions involve the belief that someone of higher status or fame is in love with the patient.

Which belief best represents an erotomanic delusion?

A. “My neighbors want to poison me.”
B. “A famous actor is secretly in love with me.”
C. “I smell smoke that no one else detects.”
D. “My thoughts are being broadcast.”

Correct answer: C. Somatic delusion

Explanation:
This is a false belief about bodily disease, making it a somatic delusion, not a hallucination (which involves sensation).

A patient believes they have incurable lice despite normal examination findings. This is best classified as:

A. Tactile hallucination
B. Illusion
C. Somatic delusion
D. Olfactory hallucination

Correct answer: C. Hallucinations are perceptions without external stimuli

Explanation:
Hallucinations occur without any external sensory stimulus, whereas illusions are misinterpretations of real stimuli.

Which statement correctly distinguishes hallucinations from illusions?

A. Hallucinations require external stimuli; illusions do not
B. Illusions occur only in psychotic disorders
C. Hallucinations are perceptions without external stimuli
D. Illusions are always auditory

Correct answer: C. Auditory

Explanation:
Auditory hallucinations, particularly voices, are the most common hallucinations in schizophrenia.

Which type of hallucination is most commonly associated with schizophrenia?

A. Visual
B. Olfactory
C. Auditory
D. Tactile

Correct answer: C. They may instruct harm to self or others

Explanation:
Command hallucinations can direct dangerous behaviors, making them a psychiatric emergency to assess.

Why are command auditory hallucinations especially important to assess?

A. They indicate substance intoxication
B. They are always benign
C. They may instruct harm to self or others
D. They confirm a diagnosis of dementia

Correct answer: B. Voices narrating the patient’s actions and thoughts

Explanation:
Running commentary hallucinations involve voices describing or narrating the patient’s actions in real time, often causing distress.

Running commentary hallucinations are characterized by:

A. A single voice giving commands
B. Voices narrating the patient’s actions and thoughts
C. Visual images accompanying speech
D. A belief that thoughts are being broadcast

Correct answer: B. Lewy body dementia and substance intoxication

Explanation:
Visual hallucinations are classically linked to Lewy body dementia and intoxication, though they may also occur in delirium or severe psychosis.

Visual hallucinations are most classically associated with:

A. Major depressive disorder
B. Lewy body dementia and substance intoxication
C. Generalized anxiety disorder
D. Obsessive-compulsive disorder

Correct answer: C. Seizure disorder (epileptic aura)

Explanation:
Olfactory hallucinations are commonly associated with temporal lobe seizures and may represent an aura.

A patient reports smelling burning rubber with no external source. This symptom should raise suspicion for:

A. Schizophrenia
B. Alcohol withdrawal
C. Seizure disorder (epileptic aura)
D. Panic disorder

Correct answer: B. Drug abuse or alcohol withdrawal

Explanation:
Tactile hallucinations (e.g., formication) are classically linked to substance use or withdrawal, especially alcohol and stimulants.

Tactile hallucinations are most commonly associated with:

A. Depression
B. Drug abuse or alcohol withdrawal
C. Lewy body dementia
D. Panic attacks

Correct answer: B. Disorganized thinking

Explanation:
Psychosis classically involves delusions, hallucinations, and disorganized thinking. Disorganized thinking reflects impaired reality testing and thought processes.

Which of the following is considered a core feature of psychosis in addition to delusions and hallucinations?

A. Mood lability
B. Disorganized thinking
C. Poor insight only
D. Anxiety symptoms

Correct answer: C. External sensory stimulus

Explanation:
An illusion is a misinterpretation of a real external stimulus, whereas hallucinations occur without any external sensory input.

Which feature is essential for a perceptual disturbance to be classified as an illusion rather than a hallucination?

A. Presence of a psychotic disorder
B. Auditory modality
C. External sensory stimulus
D. Patient distress

Correct answer: C. Greater severity of psychotic disorder

Explanation:
Hearing multiple voices at the same time is associated with greater distress and more severe psychotic illness, as emphasized in your text.

A patient reports hearing several voices talking simultaneously. This finding most strongly suggests:

A. Mild psychotic illness
B. Anxiety-related perceptual disturbance
C. Greater severity of psychotic disorder
D. Normal internal dialogue

Correct answer: C. To assess risk of harm to self or others

Explanation:
Certain hallucinations, particularly command hallucinations, may instruct harm. Detailed exploration is essential for risk assessment and patient safety.

Why is it clinically important to explore the content and type of auditory hallucinations rather than simply noting their presence?

A. To confirm cultural appropriateness
B. To establish personality traits
C. To assess risk of harm to self or others
D. To differentiate illusion from delusion

Correct answer: B. Lewy body dementia, delirium, or intoxication

Explanation:
Visual hallucinations are less typical of primary psychotic disorders and should raise suspicion for Lewy body dementia, delirium, or substance intoxication.

The presence of visual hallucinations should prompt careful consideration of which of the following in the differential diagnosis?

A. Only schizophrenia
B. Lewy body dementia, delirium, or intoxication
C. Generalized anxiety disorder
D. Obsessive-compulsive disorder

Correct answer: B. Symptoms occurring across a spectrum of psychotic disorders

Explanation:
Your text correctly frames delusions and hallucinations as symptoms across a spectrum of psychotic disorders, not confined to a single diagnosis.

Delusions and hallucinations are best described as:

A. Disorders exclusive to schizophrenia
B. Symptoms occurring across a spectrum of psychotic disorders
C. Always indicative of dementia
D. Always caused by substance use