Internet Mental Health

Prediction: Lasts For Hours To Days

  • Occupational impairment (walks around in a daze)
  • Detachment (inability to comprehend stimuli, disorientation, amnesia; may further withdraw into a dissociative stupor)
  • Negative emotion (anxiety, panic attacks; may have agitation and over-activity)
  • Autonomic signs of panic anxiety (tachycardia, sweating, flushing)


Acute Stress Reaction F43.0 - ICD10 Description, World Health Organization

A transient disorder that develops in an individual without any other apparent mental disorder in response to exceptional physical and mental stress and that usually subsides within hours or days. Individual vulnerability and coping capacity play a role in the occurrence and severity of acute stress reactions. The symptoms show a typically mixed and changing picture and include an initial state of "daze" with some constriction of the field of consciousness and narrowing of attention, inability to comprehend stimuli, and disorientation. This state may be followed either by further withdrawal from the surrounding situation (to the extent of a dissociative stupor - F44.2), or by agitation and over-activity (flight reaction or fugue). Autonomic signs of panic anxiety (tachycardia, sweating, flushing) are commonly present. The symptoms usually appear within minutes of the impact of the stressful stimulus or event, and disappear within two to three days (often within hours). Partial or complete amnesia (F44.0) for the episode may be present. If the symptoms persist, a change in diagnosis should be considered.
Dissociative Stupor F44.2 - ICD10 Description, World Health Organization
Dissociative stupor is diagnosed on the basis of a profound diminution or absence of voluntary movement and normal responsiveness to external stimuli such as light, noise, and touch, but examination and investigation reveal no evidence of a physical cause. In addition, there is positive evidence of psychogenic causation in the form of recent stressful events or problems.
Dissociative Amnesia F44.0 - ICD10 Description, World Health Organization
The main feature is loss of memory, usually of important recent events, that is not due to organic mental disorder, and is too great to be explained by ordinary forgetfulness or fatigue. The amnesia is usually centred on traumatic events, such as accidents or unexpected bereavements, and is usually partial and selective. Complete and generalized amnesia is rare, and is usually part of a fugue (F44.1). If this is the case, the disorder should be classified as such. The diagnosis should not be made in the presence of organic brain disorders, intoxication, or excessive fatigue.
Dissociative Fugue F44.1 - ICD10 Description, World Health Organization
Dissociative fugue has all the features of dissociative amnesia, plus purposeful travel beyond the usual everyday range. Although there is amnesia for the period of the fugue, the patient's behaviour during this time may appear completely normal to independent observers.
Acute Stress Disorder - Diagnostic Criteria, American Psychiatric Association

An individual diagnosed with acute stress disorder disorder needs to meet all of the following criteria:

  • Exposure to actual or threatened death, serious injury, or sexual violence in one (or more) of the following ways:

    • Directly experiencing the traumatic event(s).

    • Witnessing, in person, the event(s) as it occurred to others.

    • Learning that the traumatic event(s) occurred to a close family member or close friend. In cases of actual or threatened death of a family member or friend, the event(s) must have been violent or accidental.

    • Experiencing repeated or extreme exposure to aversive details of the traumatic event(s) (e.g., first responders collecting human remains; police officers repeatedly exposed to details of child abuse). Note: This does not apply to exposure through electronic media, television, movies, or pictures, unless this exposure is work related.

  • Presence of nine (or more) of the following symptoms from any of the five categories of intrusion, negative mood, dissociation, avoidance, and arousal, beginning or worsening after the traumatic event(s) occurred:

    • Intrusion Symptoms

    • Recurrent, involuntary, and intrusive distressing memories of the traumatic event(s). Note: In children, repetitive play may occur in which themes or aspects of the traumatic event(s) are expressed.

    • Recurrent distressing dreams in which the content and/or affect of the dream are related to the traumatic event(s). Note: In children, there may be frightening dreams without recognizable content.

    • Dissociative reactions (e.g., flashbacks) in which the individual feels or acts as if the traumatic event(s) were recurring. (Such reactions may occur on a continuum, with the most extreme expression being a complete loss of awareness of present surroundings.) Note: In children, trauma-specific reenactment may occur in play.

    • Intense or prolonged psychological distress at exposure to internal or external cues that symbolize or resemble an aspect of the traumatic event(s).

    • Negative Mood

    • Persistent inability to experience positive emotions (e.g., inability to experience happiness, satisfaction, or loving feelings).

    • Dissociative Symptoms

    • An altered sense of the reality of one's surroundings or oneself (e.g., seeing oneself from another's perspective, being in a daze, time slowing).

    • Inability to remember an important aspect of the traumatic event(s) (typically due to dissociative amnesia and not to other factors such as head injury, alcohol or drugs).

    • Avoidance Symptoms

    • Efforts to avoid distressing memories, thoughts, or feelings about or closely associated with the traumatic event(s).

    • Efforts to avoid external reminders (people, places, conversations, activities, objects, situations) that arouse distressing memories, thoughts, or feelings about or closely associated with the traumatic event(s).

    • Arousal Symptoms

    • Sleep disturbance (e.g., difficulty falling or staying asleep or restless sleep).

    • Irritable behavior and angry outbursts (with little or no provocation) typically expressed as verbal or physical aggression toward people or objects.

    • Hypervigilance.

    • Problems with concentration.

    • Exaggerated startle response.

  • Duration of the disturbance is 3 days to 1 month after trauma exposure. Note: Symptoms typically begin immediately after the trauma, but persistence for at least 3 days and up to a month is needed to meet disorder criteria.

  • The disturbance causes clinically significant distress or impairment in social, occupational, or other important areas of functioning.

  • The disturbance is not attributable to the physiological effects of a substance (e.g., medication, alcohol) or another medical condition (e.g., mild traumatic brain injury) and is not better explained by brief psychotic disorder.
This disorder develops in an otherwise mentally healthy individual in response to an exceptionally traumatic event. Initially there is a dissociative phase (with absence of emotional responsiveness, "being in a daze", derealization, depersonalization, and/or dissociative amnesia). Later the traumatic event is persistently reexperienced (flashbacks), or there is distress on exposure to reminders of the traumatic event. There is marked avoidance of stimuli that arouse recollections of the trauma. There are marked symptoms of anxiety or increased arousal (e.g., difficulty sleeping, irritability, poor concentration, hypervigilance, exaggerated startle response, motor restlessness). This disorder causes significant distress or life impairment. Symptoms typically begin immediately after the trauma, but persistence for at least 3 days and up to a month. It is not due to a drug, medication, or general medical condition.

Effective therapies

Prolonged exposure therapy is the most effective therapy (47% achieve full remission on 6 month followup). Trauma-focused cognitive behavioral therapy is far less effective (only 13% achieve full remission on 6 month followup). Supportive therapy is also less effective.

Ineffective therapies

Vitamins, dietary supplements, antidepressant, antianxiety, and antipsychotic medications are ineffective for this disorder.



Free Diagnosis Of This Disorder

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