西北地区慢性肺心病男:女=1.5:1,年龄51~60岁见32.8％,汉:民=3.75:1,病因慢支见86.9％,吸烟者见60.9％,病程10年以上占56.2％。临床上咳嗽98.4％,咳痰95.4％,气短89％,湿罗音90.6％,P_2亢进90.5％,剑突下心尖搏动57.7％。血色素15克以上 45.2％,中性75％以上51％,血清钾、钠、氯低于正常者超过高者,随着高碳酸血症程度的增高,低氯血症亦增加。利尿剂使用不当,呼酸易并发代硷,更会引起低钾血症加上低氯血症,故要避免医原性因素,低钠血症的神志改变应与肺脑鉴别。肺心病因心衰、缺氧、肾功受损非蛋白氮增高40％,有报导为直接死亡的原因。X线820例中肺动脉段突出≥3mm, Northwest chronic pulmonary heart disease male: female = 1.5: 1, 32.8% of the age of 51 to 60 years old, Han: 3.75: 1, the cause of slow see 86.9%, smokers see 60.9%, duration of more than 10 years accounted for 56.2% . Clinical cough 98.4%, expectoration 95.4%, shortness of breath 89%, wet rales 90.6%, P 2 hyperthyroidism 90.5%, apical xiphoid beats 57.7%. Hemoglobin more than 15 grams 45.2%, neutral 75% 51%, serum potassium, sodium, chloride below normal than the higher, with the increase of hypercapnia, hypochlorosis also increased. Diuretic improper use, Huhhot easily complicated by alkaline, but also cause hypokalemia plus hypochlorirubine, so to avoid the ikaty factors, hyponatremia, mental changes should be identified with the lung and brain. Pulmonary heart disease due to heart failure, hypoxia, renal damage non-protein nitrogen increased by 40%, there are reported as the direct cause of death. 820 cases of X-ray prominent pulmonary artery segment ≥ 3mm,