如果你感觉做深呼吸的能力正在下降，要你的医生帮你做个肺功能测试，以给你自己肺部健康状况一个清楚的展示。
If you feel your ability to draw a deep breath is declining, ask your doctor to perform lung function tests to give you a clear picture of your lung health.
主要有效评估是6分钟步行距离(6mwd)测试，纽约心脏协会功能级别改变以及几种标准呼吸困难等级评分。
Primary efficacy measures were the 6-minute walking distance (6mwd) test, change in New York Heart Association functional class and several standard dyspnoea rating scales.
功能测试选用基础脉搏、血压、每分钟呼吸频数、肺活量；
The basic pulse, blood pressure, respiratory frequency per minute and vital capacity were measured in the test of function.
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