A 29-year-old woman is brought to the physician by her father because of a change in her behavior over the past 8 months. The father says that his daughter has become increasingly withdrawn; she has not answered any phone calls or visited her family and friends. The patient says that she has to stay at home because a foreign intelligence service is monitoring her. She thinks that they are using a magnetic field to read her mind. Mental status exam shows disjointed and perseverative thinking. She is anxious and has a flat affect. Which of the following is the most likely diagnosis?
ADelusional disorder
BSchizophrenia
CParanoid personality disorder
DSchizophreniform disorder
ESchizoid personality disorder
A 23-year-old man is brought to the emergency department by his girlfriend because of acute agitation and bizarre behavior. The girlfriend reports that, over the past 3 months, the patient has become withdrawn and stopped pursuing hobbies that he used to enjoy. One month ago, he lost his job because he stopped going to work. During this time, he has barely left his apartment because he believes that the FBI is spying on him and controlling his mind. He used to smoke marijuana occasionally in high school but quit 5 years ago. Physical and neurologic examinations show no abnormalities. On mental status examination, he is confused and suspicious with marked psychomotor agitation. His speech is disorganized and his affect is labile. Which of the following is the most likely diagnosis?
ASchizophreniform disorder
BSchizoid personality disorder
CDelusional disorder
DSchizoaffective disorder
EBrief psychotic disorder
A 23-year-old woman is brought to the physician by her father because of strange behavior for the past 6 months. The father reports that his daughter has increasingly isolated herself in college and received poor grades. She has told her father that aliens are trying to infiltrate her mind and that she has to continuously listen to the radio to monitor these activities. She appears anxious. Her vital signs are within normal limits. Physical examination shows no abnormalities. Neurologic examination shows no focal findings. Mental status examination shows psychomotor agitation. She says: “I can describe how the aliens chase me except for my car which is parked in the garage. You know, the sky is beautiful today. Why does my mother have a cat?” Which of the following best describes this patient's thought process?
ACircumstantial speech
BClang associations
CFlight of ideas
DThought-blocking
ELoose associations
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