Stoller J K
Department of Pulmonary Disease, Cleveland Clinic Foundation, OH 44195.
Cleve Clin J Med. 1992 Jan-Feb;59(1):75-8. doi: 10.3949/ccjm.59.1.75.
Spirometry is a simple and informative test for evaluating airflow obstruction. Measurements from a forced expiratory maneuver are conventionally displayed as volume vs time (spirogram) and flow vs volume (flow-volume loop) tracings. Spirometric measurements like the forced expiratory volume in 1 second inform about the degree of airflow obstruction, whereas the flow-volume loop helps identify the presence and anatomic location of upper airway obstruction, which may mimic symptoms of obstructive lung disease. As a simple, inexpensive, and informative test, spirometry should be used liberally in assessing patients with respiratory symptoms.
肺量测定法是一种用于评估气流阻塞的简单且信息丰富的测试。强制呼气动作的测量结果通常以容积与时间（肺量图）以及流速与容积（流速-容积环）曲线的形式呈现。像一秒用力呼气量这样的肺量测定指标可反映气流阻塞的程度，而流速-容积环则有助于识别上气道阻塞的存在及其解剖位置，上气道阻塞可能会模仿阻塞性肺疾病的症状。作为一种简单、廉价且信息丰富的测试，肺量测定法在评估有呼吸道症状的患者时应广泛使用。
