quarta-feira, 20 de março de 2013

Vomit


Nausea is an unpleasant feeling of vomit. It is usually felt in the upper abdomen. It varies in intensity and may or may not be followed by vomiting.
Vomiting is the forcible expulsion of the contents through the mouth or the stomach of the initial portion of the intestine. There may be even elimination of undigested food, or just already digested secretions produced by the body to allow digestion (saliva, gastric juice, pancreatic juice, bile).
The type of material that will be removed will depend on the time since the person was fed until the time of vomiting and the type of problem that is causing.
It is important to differentiate vomiting from regurgitation. The latter is not forced return of material from the esophagus, stomach or upper portion of the intestine, without effort or muscle twitching belly or chest, and usually not associated with nausea. It is what often happens to babies in the first months and in adults with complaints of heartburn (gastroesophageal reflux).

Treatment
Most episodes of nausea with or without vomiting, improves spontaneously within hours or a few days. While staying the picture is very important to maintain hydration. Adults, and especially children and the elderly, should be encouraged to maintain abundant fluid intake (water, soup, juice) to prevent dehydration.
It is normal for people to not want to eat while they are nauseous, and there is no need to force food intake. All efforts should be focused on encouraging the patient to drink liquids.

Acute conditions usually resolve in a few days, and after, the patient may gradually recover what stopped eating. If the patient wants to eat, you should then offer small amounts of food, preferably low-fat. The soup boiled with cereal inside (rice, for example) tend to be well accepted and had a reasonable amount of calories.

The treatment of nausea itself can be made with several types of drugs used orally or via injection (intramuscularly or intravenously). To use it required the guidance of a physician.

Cases that are not resolved in a few days, where the individual is unable to maintain a minimum intake of liquids or cases with significant bleeding or other symptoms associated, should be evaluated by a physician so that he can clarify the cause of the problem, state exams , medicines and even hospitalization, if necessary.

Prevention
Good hygiene and proper food storage can prevent some cases of foodborne illness are one of the most frequent causes of nausea and vomiting.
Situations knowingly causing nausea in susceptible people, such as the use of certain medications and boat trips, bus or airplane, can be managed with the use of preventive medication. People who know they will be exposed to these situations, they can seek advice from a doctor to know what, when and how to take preventative medication.
Currently, we obtain a good control of nausea induced by chemotherapy regimens with antiemetics (counter-vomiting) potent.

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