Guidelines for the Diagnosis of Prolonged Grief Disorder

The death of a loved one is one of life’s greatest, universal stressors to which most bereaved individuals successfully adapt without clinical intervention. For a minority of bereaved individuals, grief is complicated by superimposed problems and healing does not occur. The resulting syndrome of complicated grief causes substantial distress and functional impairment even years after a loss, yet knowing when and how to intervene can be a challenge.
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DSM-5 Diagnostic Criteria for Major Depressive Disorder

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.
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Diagnostic Criteria for Serotonin Syndrome (SS)

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.
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Criteria for the Diagnosis of Attention Deficit–Hyperactivity Disorder (ADHD)

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.
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ICSD Diagnostic Criteria for Narcolepsy

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.
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Criteria for the Diagnosis of Borderline Personality Disorder (BPD)

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.
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