A 45-year-old obese man is evaluated in a locked psychiatric facility. He was admitted to the unit after he was caught running through traffic naked while tearing out his hair. His urine toxicology screening was negative for illicit substances and after careful evaluation and additional history, provided by his parents, he was diagnosed with schizophrenia and was treated with aripiprazole. His symptoms did not improve after several dosage adjustments and he was placed on haloperidol, but this left him too lethargic and slow and he was placed on loxapine. After several dosage adjustments today, he is still quite confused. He describes giant spiders and robots that torture him in his room. He describes an incessant voice screaming at him to run away. He also strongly dislikes his current medication and would like to try something else. Which of the following is indicated in this patient?
AHaloperidol
BOlanzapine
CChlorpromazine
DFluphenazine
EClozapine
A 35-year-old woman comes to the physician accompanied by her husband after he started noticing strange behavior. He first noticed her talking to herself 8 months ago. For the past 6 months, she has refused to eat any packaged foods out of fear that the government is trying to poison her. She has no significant past medical history. She smoked marijuana in college but has not smoked any since. She appears restless. Mental status examination shows a flat affect. Her speech is clear, but her thought process is disorganized with many loose associations. The patient is diagnosed with schizophrenia and started on olanzapine. This patient is most likely to experience which of the following adverse effects?
ADyslipidemia
BDiabetes insipidus
CAgranulocytosis
DMyoglobinuria
ESeizures
A 31-year-old woman is brought to the physician because of increasing restlessness over the past 2 weeks. She reports that she continuously paces around the house and is unable to sit still for more than 10 minutes at a time. During this period, she has had multiple episodes of anxiety with chest tightness and shortness of breath. She was diagnosed with a psychotic illness 2 months ago. Her current medications include haloperidol and a multivitamin. She appears agitated. Vital signs are within normal limits. Physical examination shows no abnormalities. The examination was interrupted multiple times when she became restless and began to walk around the room. To reduce the likelihood of the patient developing her current symptoms, a drug with which of the following mechanisms of action should have been prescribed instead of her current medication?
AH2 receptor antagonism
B5-HT2A receptor antagonism
Cα2 receptor antagonism
DNMDA receptor antagonism
EGABA receptor antagonism
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