Colon purge test

The colonic gas purge test was carried out according to the following principle. The appendix is ​​connected to the cecum, and the cecum continues with the colon. When the appendix and the cecum are inflamed, such as the flatulence of the colonic intestine, the tension of the intestinal wall of the inflammation site is increased, which may cause pain in the lower right abdomen. This test by artificially increasing the ileocecal intestinal pressure, observe the presence or absence of abdominal pain to determine whether there is appendicitis or appendicitis. Basic Information Specialist classification: Digestive examination classification: other examinations Applicable gender: whether men and women apply fasting: not fasting Analysis results: Below normal: Normal value: no Above normal: negative: There was no pain in the right lower abdomen or the pain was not aggravated by the test. Positive: 1. Positive in acute appendicitis, appendicitis. 2. Negative can not completely rule out appendicitis or appendicitis, when the lesion is perforated. This test can be negative when there is less gas in the intestinal lumen. Tips: Pay attention to normal diet and rest and prevent endocrine disorders. Normal value The negative value of this experiment is normal, and there is no pain in the right lower abdomen or the pain is not aggravated. Clinical significance 1. Positive in acute appendicitis, appendicitis. 2. Negative can not completely rule out appendicitis or appendicitis, when the lesion is perforated. This test can be negative when there is less gas in the intestinal lumen. Abnormal result 1. At the beginning of acute inflammation of appendicitis, the appendix showed hyperemia and swelling, edema in the wall and infiltration of neutral polymorphonuclear leukocytes, small ulcers and bleeding spots in the mucosa, and a small amount of exudation of the serosa. The turbid exudate accumulated in the cavity, called simple appendicitis, because the location of visceral pain is unknown, the patient feels pain in the upper abdomen or around the umbilicus, often accompanied by nausea and vomiting, general malaise, and abdominal pain gradually shifts to the lower right abdomen. Local and obvious tenderness, the clinically used McBney's point indicates the tender part. If the condition continues to develop, the swelling and congestion of the appendix are more obvious after a few hours. There is often a small abscess in the wall of the appendix. The mucosa is ulcerated and necrotic. The serosal surface is fibrously exuded. The cavity is filled with purulent liquid, called suppuration. Cellulitis inflammatory appendicitis. At this time, the systemic symptoms were severe, and the right lower quadrant was painful. Finally, it can develop into tissue necrosis of the appendix wall. If there is obstruction, the distal necrosis of the appendix is ​​more serious, purple-black, often perforated here, called gangrenous appendicitis, usually combined with localized peritonitis. In addition, it is accompanied by obvious muscle tension and rebound tenderness. 2. Appendicitis is acute appendicitis People who need to be examined: Suspicious appendicitis, patients with appendicitis. Positive results may be diseases: acute appendicitis, pediatric ulcerative colitis considerations Forbidden before examination: pay attention to normal diet, pay attention to normal work and rest, and prevent endocrine disorders. Requirements for inspection: Actively cooperate with the doctor's request. 1. When pressing the abdomen, the pressure should be moderate. If the pressure is small, the gas in the intestinal lumen cannot be squeezed to the proximal end of the colon. If the pressure is too large, the intestinal tube may be damaged. 2. Abdominal muscle tension This test is not effective. Inspection process method: The patient is lying on his back and is tested by one of the following methods: Method 1: The examiner stands on the right side of the patient, the right hand presses the lower left descending colon, and the left hand repeatedly presses the proximal descending colon above the right hand to squeeze the gas in the intestinal lumen to increase the intestinal wall tension. Method 2: The examiner puts the five fingers together and straightens, presses the palm of the hand against the descending colon, and is perpendicular to the direction of travel, and then slides upward along the abdominal wall to drive the gas in the intestinal cavity to the proximal end of the colon (P351, Figure 2-1- 5, slightly). Method 3: The examiner presses the right palm to the colon of the left lower abdomen of the patient, and the left palm is pressed against the side of the right palm. The palm is pressed tightly, and the right hand is raised and pressed to the left hand side, so that the pressing is performed several times. Method 4: The examiner presses the point symmetrical portion of the left lower abdomen of the patient with the palm of his hand. The result is judged: 1. When the above test is performed, it causes the right lower quadrant pain or pain to be positive. 2. No pain or pain in the right lower abdomen was negative at the time of the test. Not suitable for the crowd Inappropriate crowd: intestinal perforation (since the intestinal contents can be accelerated into the abdominal cavity). Adverse reactions and risks Nothing.

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