
It is understood that food contaminants refer to chemical hazardous substances that are produced during the production, processing, packaging, storage, transportation, and sale of foods, or are brought into the food during the consumption process, and are not intentionally added. The new standard has integrated and revised the limit regulations for thirteen pollutants such as lead in more than 20 categories of foods such as cereals, vegetables, fruits, alcoholic beverages, etc. A total of more than 160 limit indicators have been set, which are in compliance with the limits set by the Codex Alimentarius Commission. Basically the same.
High Flow Nasal Cannula(HFNC) oxygen therapy is a form of non –invasive respiratory support, which comprises an air oxygen blender, an active humidifier, a single heated circuit and a nasal cannula. It delivers adequately heated and humidified medical gas up to 10-60L/min, and is considered to have a number of physiological effects: reduction of anatomical dead space, PEEP effect, constant fraction of inspired oxygen and good humidification.
It is widely used in RICU and ICU.
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