【名词&注释】
肺动脉高压(pulmonary hypertension)、肺结核(pulmonary tuberculosis)、合并症(complication)、血常规(blood routine)、肺毛细血管(pulmonary capillary)、毛细血管床(capillary bed)
[多选题]导致肺动脉高压的原因有()
A. 肺血管狭窄或闭塞
B. 肺组织结构破坏,毛细血管床(capillary bed)减少
C. 胸内压升高,压迫肺毛细血管(pulmonary capillary)
D. 肺血管收缩
E. 循环血量减少