Gastric basal acid secretion assay (BAO)

The amount of basal gastric acid secretion (BAO) refers to the amount of gastric acid secretion that is continuous with each other in the absence of food or drug stimulation. Basic Information Specialist classification: Digestive examination classification: endocrine examination Applicable gender: whether men and women apply fasting: fasting Analysis results: Below normal: BAO was significantly decreased after duodenal ulcer surgery and after partial gastrectomy. Normal value: BAO: 1.92-5.88mmol/h Above normal: BDU and PAO increased in duodenal ulcer and complex ulcer, BAO>5mmol/h has diagnostic significance; if PAO>40mmol/h, it suggests that blood or perforation will be emitted. negative: Positive: Tips: To maintain normal sleep, it is forbidden to eat things that are irritating to the stomach so as not to affect the results. Normal value The amount of basal gastric juice is 10 to 100 ml, BAO is 3.9 ± 1.98 mmol/h, and the pH is between 0.8 and 1.8. Clinical significance Abnormal results in duodenal bulb ulcers and complex ulcers, BAO and PAO increased, BAO> 5mmol / h has diagnostic significance; if PAO> 40mmol / h, suggesting that blood and perforation will be issued. BAO and PAO decreased significantly after duodenal ulcer, and BAO and PAO decreased significantly after partial gastrectomy. If anastomotic ulcer appeared after operation, the two increased gradually. The pH>7 of the pentapeptide gastrin gastric acid secretion test is true gastric acid deficiency; if the pH is between 3.5 and 7.0, the gastric acid is too low; the gastric cancer and atrophic gastritis may be true gastric acid deficiency. Zhuoai syndrome (gastrinoma) BAO>15mmoL/h, MAO>30mmol/h, BAO/MAO ratio, often >0.6, so the pentapeptide gastrin test has been used as a diagnostic basis. Need to check the population of people with too much stomach acid, too low, intestinal diseases. High results may be diseases: huge hypertrophic gastritis, abdominal distension, stagnation, stomach syphilis, main symptoms of stagnation of stomach and stagnation, bile reflux gastritis after gastrectomy, superficial gastritis Contraindications before the test: to maintain normal sleep, it is forbidden to eat things that are irritating to the stomach so as not to affect the results. Requirements for examination: Eliminate tension and try to cooperate with the doctor to get gastric juice. Inspection process Gastric tube collection method: 1. The action should be light when intubating, do not damage the esophageal mucosa. You should be proficient in the depth and method of intubation. 2. If coughing, difficulty breathing, cyanosis, etc. occur during intubation, it is suggested to enter the trachea. It should be pulled out immediately, and then rested after a short break. 3. After insertion, check if the stomach tube is in the stomach by the following method (1) Connect the end of the stomach tube to the syringe. If the gastric juice can be withdrawn, the stomach tube is proved to be in the stomach. (2) Inject 10 ml of air from the stomach tube with a syringe, and use a stethoscope to pick up the gas over water in the stomach, indicating that the stomach tube is in the stomach. (3) Place the open end of the stomach tube under the water surface, and insert the airway into the trachea if the patient escapes when exhaling. Not suitable for the crowd Any esophageal varices, esophageal stenosis, esophageal tumor, aortic aneurysm, severe hypertension, cardiovascular disease, heart failure, late pregnancy, physical weakness and other serious diseases should not be inserted into the stomach tube. Adverse reactions and risks If coughing, difficulty breathing, cyanosis, etc. occur during intubation, it is suggested to enter the trachea. It should be pulled out immediately, and then rested after a short break.