Cochet B, Griessen M, Vallotton M C, Infante E, Bérgoz R
Schweiz Med Wochenschr. 1979 Apr 14;109(15):555-7.
To determine the validity of breath H2 measurements in detecting lactase deficiency, capillary blood glucose and breath H2 were measured after ingestion of 50 g lactose in 34 patients with abdominal symptoms or diarrhea. 18 patients had biopsy-proven lactase deficiency and 16 normal lactase activity. Blood glucose determination produced 2 false-positive results while breath H2 measurements provided 2 false-negative and 4 false-positive results.
为确定呼气氢气测量在检测乳糖酶缺乏症中的有效性，对34例有腹部症状或腹泻的患者摄入50克乳糖后测定了毛细血管血糖和呼气氢气。18例患者经活检证实有乳糖酶缺乏，16例乳糖酶活性正常。血糖测定产生了2例假阳性结果，而呼气氢气测量产生了2例假阴性和4例假阳性结果。
