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题1:答案 E【题解】呕吐物无酸作为胃酸缺乏的指标很不科学,故不足取。胃液中游离酸与结合酸均为可滴定酸,根据可滴定酸总量的多少才能了解有无胃酸缺乏,单凭胃液中无游离酸判断胃酸缺乏不够全面。空腹胃液中 pH 值等于或大于7.0及基础酸分泌量等于零,两者意义相同,可反映胃酸缺乏。但两者重复性差,变异较大,故应采用刺激剂(磷酸组织胺0.04mg/kg 或五肽胃泌素6ng/kg)作全部壁细胞的最大酸分泌量(MAO)测定。如 MAO 等于零,则为真
Question 1: The answer E [Problem Solution] vomit acid-free As an indicator of gastric acid deficiency is unscientific, it is not enough to take. Free acid and acid in gastric juice are titratable acid, according to the total amount of titratable acid in order to know whether there is a lack of gastric acid, gastric juice alone without acid to determine lack of acid is not comprehensive enough. Fasting gastric juice pH equal to or greater than 7.0 and basal acid secretion is equal to zero, both of the same meaning, can reflect the lack of acid. However, the repeatability of the two is poor and the variation is large. Therefore, the maximal acid secretion (MAO) of all parietal cells should be determined by stimulant (histamine phosphate 0.04mg / kg or pentagastrin 6ng / kg). True if MAO equals zero