What is a barium swallow? What is the chemical formula for barium lunch

Barium meal. Angiography is the use of barium sulfate in the digestive tract.

as a contrast agent, on x-rays.

A test to show whether there are lesions in the digestive tract under irradiation. Unlike a barium enema, a barium swallow is an oral ingestion of a contrast agent that allows for a clearer radiological examination of the entire digestive tract, especially the upper gastrointestinal tract. The barium swallow used for the examination of the digestive tract is medicinal barium sulfate (i.e., the suspension of barium sulfate), so it is insoluble in water and lipids, so it is not absorbed by the mucosa of the gastrointestinal tract, so it is basically non-toxic to humans.

A compound to drink when making barium penetration, mainly composed of barium chloride, welcome!

It is an ordinary barium sulfate 150g plus an appropriate amount of gum arabic and warm boiled water to make a 200-250ml suspension. It is used clinically in gastrointestinal angiography.

During the barium swallow examination, the patient needs to take 3 5 grams of gas-producing powder to fully expand the stomach, and then take a certain amount of pure barium sulfate suspension to fill the stomach. Cooperate with X-rays.

Barium meal. The main ingredients are:Barium sulfate, and its chemical formula is BaSO4.

Barium swallow angiography is the use of barium sulfate as a contrast agent in the digestive tract.

on x-rays. A test to show whether there are lesions in the digestive tract under irradiation. Unlike a barium enema, a barium swallow is an oral ingestion of a contrast agent that provides clearer radioactivity to the entire digestive tract, especially the upper gastrointestinal tract.

Examine. The barium swallow used for the examination of the digestive tract is medicinal barium sulfate (i.e., the suspension of barium sulfate) because it is insoluble in water and lipids.

Therefore, it will not be absorbed by the mucosa of the gastrointestinal tract, so it is basically non-toxic to humans.

Precautions for barium meal:

1. It is forbidden to take drugs containing metals (such as calcium tablets, etc.) from the day before the examination.

2. The general examination takes several hours, please wait patiently, do not eat anything without the doctor's permission, and do not leave. A small number of patients had to be re-examined in the afternoon of the same day.

3. It is best to wear underwear without buttons during the inspection.

4. Clinical suspicion or confirmed intestinal obstruction.

, it is strictly forbidden to use barium sulfate for imaging.

5. The day before the examination, the diet should be semi-liquid, and it is not suitable to eat after 10 o'clock in the evening.

6.It is normal for white stools to pass after the examination. After the examination, you should drink plenty of water to expel the barium swallow as soon as possible.

Barium chloride acts on the intestinal muscles in vitro to cause them to contract violently by the following mechanisms:

1. Ba2+ enters the cell and binds with calmodulin to make smooth muscle contract;

2. Ba2+ can depolarize the cell membrane. Therefore, the addition of BACL2 will cause tonic contraction of the intestinal tube, and BACL2 does not act on the receptor number, so atropine cannot counteract this effect.

Barium chloride is a chemical formula bacl is a white crystal, soluble in water, slightly soluble in hydrochloric acid and nitric acid, insoluble in ethanol and ether, easy to absorb moisture, need to be sealed and preserved. It is used as an analytical reagent, a dehydrating agent, a barium salt, and an industrialist in electronics, instrumentation, metallurgy and other industries.

During the X-ray imaging examination, the density and thickness of various organs and tissues in the human body are different, so the natural contrast between black and white is displayed. However, in some parts of the human body, especially the abdomen, because the density of several internal organs and tissues is roughly similar, it is necessary to introduce a contrast agent that is harmless to the human body, for barium, iodine and other elements, the atomic coefficient is large, and the Xray effect will occur, and the characteristic X-ray can pass through the human tissue to the film to form a gray mist, artificially improve the display contrast, in order to achieve the ideal inspection effect.