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氢气呼吸试验(HBT)是七十年代发展起来的应用于消化系统疾病的诊断新技术。我们用国产仪器建立了HBT的方法,并应用于乳糖吸收不良症的研究。 材料和方法 采气装置参照改良Haldane-Pris-tley管自制,聚乙烯胶管长170cm,内径12mm,在一端接口吹,离口吹8.5cm处与带有三通阀的注射器相接。气体储存于50ml玻璃注射器,涂2号真空脂以保证密封。涂脂前注射器要经溶剂、重铬酸钾洗液、
Hydrogen breath test (HBT) is developed in the seventies applied to digestive diseases diagnosis of new technologies. We use the domestic equipment to establish the method of HBT, and applied to lactose malabsorption studies. MATERIALS AND METHODS The gas recovery unit was made according to the modified Haldane-Pris-tley tube. The length of the polyethylene hose was 170cm and the inner diameter was 12mm. The gas was blown at one end and 8.5cm at the outlet. The syringe was connected with a three-way valve. The gas is stored in a 50 ml glass syringe and coated with a # 2 vacuum grease to ensure sealing. Before fatting the syringe to be solvent, potassium dichromate lotion,