本文对57例慢阻肺呼吸衰竭患者进行血气、酸碱指标和血乳酸盐测定,并与35名健康人血乳酸盐水平作对照。慢阻肺呼吸衰竭患者血乳酸盐平均值为20.37±5.93mg%,而健康人血乳酸盐平均值为13.95 4.37mg%,两组相差非常显著(P<0.01)。慢阻肺呼吸衰竭组PaO_2与血乳酸盐之间的关系有负相关趋势,但相关性不显著(r=-0.245,r、05,55=0.2500)。高乳酸盐血症占21.0%。血乳酸盐测定对诊断“三重”酸碱平衡失调具有重要意义。 In this paper, 57 cases of COPD patients with blood gas, acid-base index and blood lactate determination, and 35 healthy subjects as control blood lactate levels. The average blood lactate level was 20.37 ± 5.93mg% in healthy COPD patients, while the average blood lactate level was 13.95 4.37mg% in healthy COPD patients. The difference between the two groups was significant (P <0.01). There was a negative correlation between PaO2 and blood lactate in COPD patients, but the correlation was not significant (r = -0.245, r, 05,55 = 0.2500). High lactatemia accounted for 21.0%. Determination of blood lactate in the diagnosis of “triple” acid-base balance disorders is of great significance.