Methods: Refering to literature concerned, combining clinical and external experiment, through heated to urine, added to acetic acid 、 hydrochloric acid and microscope test, the cloudy urine caused by phenolphthalein were distinguished. 方法:参照有关文献,结合临床和体外实验,对含酚酞的尿液进行加热、加醋酸、氢氧化钠及显微镜检查。