
Attention-deficit/hyperactivity disorder (ADHD) is characterized by the inability to regulate attention and/or symptoms of hyperactivity that interfere with some level of daily functioning. Although this disorder is well-recognized in children, it is less frequently diagnosed...
Acute stress disorder and posttraumatic stress disorder (PTSD) are debilitating psychiatric conditions that may occur following traumatic events or severe stressors. Generally, these two conditions have similar diagnostic criteria, with acute stress disorder marked by...
Personality disorders describe enduring, pervasive, pathologic patterns of behavior and inner experiences that deviate from a patient’s culture. Personality disorders are divided into three clusters depending on core features. Diagnosis of a personality disorder is generally...
Acute psychosis is characterized by symptoms such as hallucinations and delusions, although catatonia and disorganized thought may also be present. Distinguishing an underlying cause from a primary disorder is a focus of initial evaluation. Secondary causes of psychosis...
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