This option was extensively debated but ultimately deemed to be premature in the absence of sufficient clinical and theoretical validating data justifying such a … reconceptualization. Additionally, there appeared to be no practical way to introduce affect [or mood] dimensions covering the entire course of illness, that would capture the current concept of periods of psychosis related and unrelated to mood episodes. [N]o valid biomarkers or laboratory measures have emerged to distinguish between affective psychosis [or psychotic mood disorders] and schizophrenia. To the contrary, the idea of a dichotomy between these types of conditions has proven naïve. [T]he admixture of "schizophrenic" and affective [or mood] symptoms is a feature of many, or even most, cases with severe mental illness. Most presenting symptoms of psychosis have little validity in determining diagnosis, prognosis, or treatment response in psychosis. [U]ltimately a more … dimensional approach [to assessment and treatment] will be required. The field of psychiatry has begun to question its assumptions and analyze its data in order to merge closer with evidence-based medicine. The removal of the "episode diagnosis", and the addition of two episodes of psychosis, as qualifications for the DSM-5 schizoaffective diagnosis, may improve the diagnosis consistency over DSM-IV for research purposes, where diagnostic criteria are by necessity followed exactingly.
Electrical injuries in the home are often minor, while high tension power cables cause serious electrical injuries in the workplace. Lightning strikes can also cause severe electrical injuries. Fatal electrical injuries are often caused by tetanic spasm inducing respiratory arrest or interference with the heart causing cardiac arrest.Chemical burns are caused by contact with corrosive substances such as acid or alkali. Chemical burns are rarer than most other burns, though there are many chemicals that can damage tissue. The most common chemical-related injuries are those caused by carbon monoxide, ammonia, chlorine, hydrochloric acid, and sulfuric acid. Some chemical weapons induce chemical burns, such as white phosphorus. Most chemical burns are treated with extensive application of water to remove the chemical contaminant, though some burn-inducing chemicals react with water to create more severe injuries. The ingestion of corrosive substances can cause chemical burns to the larynx and stomach. Other mechanisms
Toxic injury is caused by the ingestion, inhalation, injection, or absorption of a toxin. This may occur through an interaction caused by a drug or the ingestion of a poison. Different toxins may cause different types of injuries, and many will cause injury to specific organs. Toxins in gases, dusts, aerosols, and smoke can be inhaled, potentially causing respiratory failure. Respiratory toxins can be released by structural fires, industrial accidents, domestic mishaps, or through chemical weapons. Some toxicants may affect other parts of the body after inhalation, such as carbon monoxide.Asphyxia causes injury to the body from a lack of oxygen.