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胃液分析是常用的一种检查技术,通过这项检查可判断胃的分泌机能(胃液分泌的量与酸度)和运动机能(胃排空情况),以辅助诊断某些胃部疾病与其它疾病。正常胃在空腹时或在进食后,均能分泌一定量的胃液,其中包括有游离酸、结合盐酸、少量有机酸类(如乳酸、酪酸)、氯化物、磷酸盐类及胃蛋白酶、凝乳酶、脂肪酶、粘液蛋白等。其中胃蛋白酶与游离盐酸对消化作用的关系最为密切,临床上多依据胃酸的高低判定胃分泌机能。正常空腹时(餐后十余小时)可抽取20～100毫升胃液,平均50毫升。此时,胃内不应再有食物残渣存留,同时也不应有过多胃
Gastric juice analysis is a commonly used testing technique by which gastric secretion (gastric acid secretion and acidity) and motor function (gastric emptying) can be assessed to assist in the diagnosis of certain stomach disorders and other disorders. Normal stomach in fasting or after eating, can secrete a certain amount of gastric juice, including free acid, combined with hydrochloric acid, a small amount of organic acids (such as lactic acid, butyric acid), chloride, phosphate and pepsin, curd Enzymes, lipases, mucins and the like. Among them, pepsin and free hydrochloric acid are the most closely related to digestion, and gastric secretion function is mostly judged according to the level of gastric acid in clinic. Normal fasting (postprandial more than ten hours) can extract 20 to 100 ml of gastric juice, an average of 50 ml. At this point, there should be no more residual food in the stomach, but also should not have too much stomach