近十年来,对非风湿性,特别是心肌局部性损害的心肌炎,在诊断和鉴别方面的困难性引起了高度重视。为了弄清疾病,广泛运用了功能诊断法。本文简略介绍直立位试验、钾、心得安试验的生理基础,方法和评价。 In the past ten years, non-rheumatic myocarditis, especially myocardial damage, has drawn great attention in the diagnosis and identification of the difficulties. In order to clarify the disease, widely used functional diagnostic method. This article briefly describes the upright position test, potassium, propranolol physiological basis for testing, methods and evaluation.