本文分析了179例肺心病人临终前动脉血气、血电解质和死亡原因。结果表明:肺心病人在临终前的酸碱失衡是常见的。其中慢性呼吸性酸中毒最常见,其它依次为三重酸碱失衡、慢性呼吸性酸中毒并代谢性酸中毒和慢性呼吸性酸中毒并代谢性碱中毒。慢性呼吸性碱中毒、慢性呼吸性碱中毒并代谢性碱中毒和代谢性酸中毒是少见的。肺心病人死亡的主要原因是并发上消化道出血,其次为直接死于酸碱失衡,特别是三重酸碱失衡。 This article analyzes the 179 cases of pulmonary heart disease in patients with arterial blood gas, blood electrolytes and the cause of death. The results show that: pulmonary heart disease before the end of the acid-base imbalance is common. One of the most common respiratory acidosis, followed by the other triple acid-base imbalance, chronic respiratory acidosis and metabolic acidosis and chronic respiratory acidosis and metabolic alkalosis. Chronic respiratory alkalosis, chronic respiratory alkalosis and metabolic alkalosis and metabolic acidosis are rare. Pulmonary heart disease death is mainly due to concurrent upper gastrointestinal bleeding, followed by direct death from acid-base imbalance, especially the triple acid-base imbalance.