Fecal nitrogen

The quantification of nitrogen in feces is mainly used for the nitrogen balance test and the diagnosis of intestinal malabsorption. In intestinal malabsorption, the amount of nitrogen excreted in the feces increases. In addition, in severe diarrhea, gastric colonic fistula also increases. In fat sputum (oral diarrhea, spontaneous diarrhea, celiac disease) can be increased to 214mmol / 24h, pancreatic disease (chronic pancreatitis, pancreatic duct obstruction, pancreatectomy) can discharge up to 214 ~ 643mmol / 24h in the feces nitrogen. Basic Information Specialist classification: Digestive examination classification: feces / parasitic examination Applicable gender: whether men and women apply fasting: not fasting Analysis results: Below normal: The reduction of nitrogen in the feces is seen in the positive nitrogen balance. Normal value: Fecal nitrogen: 71.4-143mmol/24h Above normal: It may indicate diseases such as intestinal malabsorption, severe diarrhea, gastric colon fistula, fatty sputum, pancreatic disease (chronic pancreatitis, pancreatic duct obstruction, pancreatectomy). negative: Positive: Tips: Please avoid digging the part of the toilet urine and tap water when collecting, and do not place the feces directly on toilet paper or paper towels. Normal value 71.4 ~ 143nmol / 24h (1 ~ 2g / 24h). Clinical significance Abnormal results: In intestinal malabsorption, the amount of nitrogen excreted in the feces increases. In addition, in severe diarrhea, gastric colonic fistula also increases. In fat sputum (oral diarrhea, spontaneous diarrhea, celiac disease) can be increased to 214mmol / 24h, pancreatic disease (chronic pancreatitis, pancreatic duct obstruction, pancreatectomy) can discharge up to 214 ~ 643mmol / 24h in the feces nitrogen. The reduction of nitrogen in the feces is seen in the positive nitrogen balance. Need to check the crowd: intestinal dysfunction, severe diarrhea, stomach and colon fistula and other patients. High results may be diseases: chronic diarrhea, pancreatic fistula, intestinal malabsorption syndrome, colon fistula Requirements for inspection: 1. Please avoid digging the part of the toilet urine and tap water when collecting; do not place the feces directly on toilet paper or paper towel. 2. To avoid interference with the test results, do not use cotton swabs to dig. 3. Do not collect too much feces to avoid having enough specimens for inspection. Preparation before inspection: 1. If you need to detect fecal occult blood by chemical method, please avoid eating red meat, liver and spinach, cabbage, broccoli and other foods three days before collection to avoid false positive results. 2. If you use the immunological method to detect fecal occult blood, you do not need to limit the type of diet. 3, because infants and young children are not easy to get a sufficient amount of samples at a time, if you need to collect in separate parts, please temporarily store the samples in the refrigerator to avoid bacterial growth. Not suitable for the crowd: generally no suitable for the crowd. Inspection process After the patient has a bowel movement in a specific place, the surface of the stool is taken out using a clean container and sealed for inspection. Not suitable for the crowd Non-invasive examination, so generally no suitable for the crowd. Adverse reactions and risks Non-invasive examinations generally do not cause complications or harm.

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