The diagnostic criteria for major depression in the Diagnostic and Statistical Manual of Mental Disorders, fifth edition (DSM-5), require the presence of either sadness or anhedonia with a total of five or more symptoms over a 2-week period.
Continue reading “DSM-5 Diagnostic Criteria for Major Depressive Disorder”
Serotonin syndrome is a potentially life-threatening condition resulting from increased CNS serotonergic activity that is usually drug related. Symptoms may include mental status changes, hyperthermia, and autonomic and neuromuscular hyperactivity.
Continue reading “Diagnostic Criteria for Serotonin Syndrome (SS)”
Obsessive-compulsive disorder (OCD) is a neuropsychiatric disorder characterized by obsessions or compulsions (or both) that are distressing, time-consuming, or substantially impairing.
Continue reading “Criteria for the Diagnosis of Obsessive–Compulsive Disorder (OCD)”
According to the Diagnostic and Statistical Manual of Mental Disorders, fifth edition (DSM-5), attention deficit–hyperactivity disorder (ADHD) is characterized by symptoms of impulsivity, inattention, and hyperactivity that emerge in childhood.
Continue reading “Criteria for the Diagnosis of Attention Deficit–Hyperactivity Disorder (ADHD)”
The American Psychiatric Association’s Diagnostic and Statistical Manual-IV, Text Revision (DSM-IV-TR) provides standardized criteria to help diagnose Autism Spectrum Disorders (ASDs).
Continue reading “Diagnostic Criteria for Autistic Disorder”
Tourette’s syndrome (sometimes called Tourette’s disorder) is a childhood-onset condition characterized by motor and vocal tics that are chronic (duration of >1 year).
Continue reading “Diagnostic Criteria for Tourette’s Syndrome”
Narcolepsy is a disorder of impaired expression of wakefulness and rapid-eye-movement (REM) sleep. This manifests as excessive daytime sleepiness and expression of individual physiological correlates of REM sleep that include cataplexy and sleep paralysis (REM sleep atonia intruding into wakefulness), impaired maintenance of REM sleep atonia (e.g. REM sleep behaviour disorder [RBD]), and dream imagery intruding into wakefulness (e.g. hypnagogic and hypnopompic hallucinations). Excessive sleepiness typically begins in the second or third decade followed by expression of auxiliary symptoms.
Continue reading “ICSD Diagnostic Criteria for Narcolepsy”
Borderline personality disorder is a chronic psychiatric disorder characterized by marked impulsivity, instability of mood and interpersonal relationships, and suicidal behaviour that can complicate medical care. Identifying this diagnosis is important for treatment planning.
Continue reading “Criteria for the Diagnosis of Borderline Personality Disorder (BPD)”
Bipolar disorder, a medical illness with substantial morbidity and mortality, is characterized by episodic recurrent mania or hypomania and major depression. The hallmark of bipolar disorder is at least one episode of mania (bipolar I disorder) or hypomania (bipolar II disorder).
Continue reading “Key Diagnostic Criteria Distinguishing Manic Episode from Hypomanic Episode”
In major depression, the person’s mood is described as depressed, sad, hopeless, discouraged, or “down in the dumps”.
Continue reading “Diagnostic Criteria for Major Depression”
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