Ravid M, Schindler D, Shapira J, Chen B
Department of Medicine, Meir General Hospital, Kfar Saba, Israel.
Isr J Med Sci. 1988 Jan;24(1):10-2.
This report describes a simple and reproducible physical sign of chronic obstructive pulmonary disease--the "ruler sign." With the patient standing erect, a ruler is placed on the trapezius muscle and the clavicle at the midclavicular line. The ruler forms an angle with the horizontal line. At the end of a normal expiration this angle was 36 degrees +/- 4 SD in healthy control subjects as compared with 15 degrees +/- 4 SD in patients with severe chronic obstructive pulmonary disease. A simple device is described that enables convenient measurement of this angle at the bedside.
本报告描述了一种慢性阻塞性肺疾病的简单且可重复的体征——“直尺征”。患者直立时，将一把直尺置于斜方肌和锁骨中线处的锁骨上。直尺与水平线形成一个角度。在正常呼气末，健康对照受试者的该角度为36度±4标准差，而重度慢性阻塞性肺疾病患者为15度±4标准差。本文描述了一种简单的装置，可在床边方便地测量该角度。
