A few days ago, 90 hind when the girl comes to emergency call, already was to breath more than, cyanosis of lip, both hands, show green purple namely. Via preliminary check-out, her blood pressure is normal, the heartbeat slants fast, examination of common vein blood is regular, hematic oxygen degree of saturation is inside normal limits on the low side. But in examining a process, symptom of asthma hold back is sent more serious, is she after all how?
Gluttonous pot-stewed fowl is sent toxic
The girl's complexion is like ancient costume drama medium " toxic " about, examine a doctor to see state, urgent make known to lower levels sample of draw-out and arterial blood, travel courage and uprightness analyses detected doctor's advice. Subsequently, the examination made clear hematic liquid oxygen of the patient to close a case further as a result, confirm for nitrite toxic. Doctor instantly infusion inferior Jia La -- a kind of medicaments like ink, did not pass how long, her symptom got alleviating.
How is the patient met is nitrite toxic? Be informed via the inquiry, this girl usually loves to eat pot-stewed fowl cooked food, the delicatessen that before coming on, goes in one the daily life of a family bought many pot-stewed fowl to eat, did not think of not quite up to the mark sent an order.
Clinical case of illness shows, the probability that causes bromatoxism by nitrite is higher. Nitrite is extensive consist in in our life, show white or flaxen, yi Rong at water, without smelly, flavour small salty acerbity a bit bitter. Nitrite often is used as additive agent for food, because it follows the flesh to be able to produce chemical reaction, make the cooked food such as ripe flesh, bittern flesh becomes bright red, colour and lustre is inviting, can restrain the growth of bacili of shuttle shape gemma and fleshy poisonous bacili, extend the time of keep in storage of food thereby. This two big functions, it is nitrite machines the main reason with the wide application in course of study and industry in food.
But nitrite is not salt, it is a kind of toxic carcinogenic substance. So, our country has strict wholesome standard regulation to its utility, dosage.
Nitrite but natural synthesis
Those who be worth vigilance is, in daily life, the leftover in the home also can have nitrite generation in the pickles of ort, souse. Partial food and vegetable are natural the nitric acid salt that contains higher content, because of the bacterium, ferment wait for an element, can transform for nitrite. For instance, in the process of souse pickles, can appear the period of time of nitrite content heighten, many edible pickles is possible during this toxic.
Nitrite brings about toxic principle is, it affected the aerobic tie in blood.
Below normal circumstance, ruddy lip and armour bed, because have the haemoglobin that is united in wedlock adequately with oxygen,be. This kind of haemoglobin carries aerobic function everywhere to the whole body, cannot leave among them iron element. But after absorbing the oxidant such as nitrite, the iron inside common haemoglobin was become by oxidation Gao Tie haemoglobin, lost the ability that carry oxygen, bring about toxic person anoxia of fast occurrence whole body shape, if the color such as bed of lip, armour became Brown, blue Brown blue even black, occurrence bosom chokes with resentment frowzily, the symptom such as breathing difficulty, serious person but insensible, shock, die even.
The time that these symptoms appear reachs serious level, the dosage that absorbs nitrite with the patient shows direct ratio.
Set limit to is absorbed is to gas defence crucial
See here, a lot of readers dare not eat meat possibly, bloat pickles, but actually need not such. Because show the mankind nowadays, already developmental a powerful biochemical protection mechanism, can restore the Gao Tie haemoglobin that appears below physiology condition to become the haemoglobin that has normal function. When the metabolization capacity that exceeded human body when the intake of nitrite only, just can appear toxic.
Outside wanting to use nitrite strictly according to standard of sanitation of national additive agent for food except processing factory of manufacturing company, food, people also should notice to be on guard by oneself in the life. For instance, the vegetable of new souse comes 6 days in 3 days inside eat, or eat again later in 3 weeks, fastigium of escape nitrite pH indicator; Leftover ort notices microtherm is saved, eat less as far as possible or do not eat, food is changing before flavour, the chroma of nitrite often has lifted.
