Check _'s general knowledge in intestinal transmission function

Check _'s general knowledge in intestinal transmission function
It is mainly to the input mark in the gastrointestinal tract that the intestinal transportation function is checked, through observing the supersession, operation and distribution situation of marks in the gastrointestinal tract, to infer the running speed of the gastrointestinal content thing, thus in order to judge the transshipment function of the digestive tract. Mainly there are three kinds of commonly used marks, namely: Catabolism ( For instance acyl even sulfanilamide pyridine of lactose, big Yang,etc.) ; Not completely the X-rays. Radioactive the intersection of nuclide and kind ' For instance Technetium 99, sulphur 131, indium 111,etc.) . Catabolism and X-ray mark use for finding small intestine and colon transportation function respectively mainly completely, and the nuclide mark can be used in small intestine and colon transportation function to check. The intestinal transportation function mentioned at ordinary times is checked, mainly mean the colon transportation function is checked. It's time check, because nuclide mark checks laws to take the special apparatus, and the patient is exposed to the nuclide, it is sure to limit to employ and receive. Without the intersection of X-ray and mark check law completely, until its simple helping and patient have agony, need special apparatus, not cheap to employ extensively.
1,The small intestine is transported and tested
( 1) Mechanism
Determine the transportation function method of small intestine has multi-type, it is to breathe out the gas hydrogen density and determine the law to employ more one at present. Its mechanism is: Experimenter oral milk, behind the fructose, transport colon to through small intestine, the intersection of lactic acid and bacillus in the colon can decompose fructose of milk and produce the hydrogen, discharge since lung through blood circulation, through determine oral the intersection of milk and the intersection of fructose and late arrival appear the intersection of hydrogen and density raise size of time, come, judge the intersection of small intestine and the intersection of transportation and function in the expired air. This method is simple and convenient, does not have creating, it is apt to be accepted by patient. But there are more influence factors, for instance the stomach empties the accuracy that unusual, suffering from diarrhoea, intestinal fungus a group of lacking proper care and some medicines,etc. can influence the result, it is false and positive or false and negative to appear.
( 2) Method give high fibrous diet in the 1 month check, prohibit to eat 15h before checking. Test begin, give 12g milk fructose ' Dissolve into 120ml water) Take orally. In the 3h, collect, exhale last line lung to be angry through 15min while being every, measure hydrogen content among them on take the intersection of milk and fructose. The patient fetches seats, the fasting, water and smoking in the checking process. Determine hydrogen solubility with the hydrogen chromatogram analysis instrument, in order to promise the rate (ppm, namely 10-6) Hydrogen to regard as density standard. While exceeding 20ppm as breathing out hydrogen, namely think experimenters have hydrogen to breathe out. Until base of 20ppm this breathe out hydrogen, exceed 5ppm for the second time in succession on the line, namely regarded as, prohibit to eat under the state breathing out density indexing of hydrogen. This time is the mouth - time of blind transportation.
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