To the Editor In a Teachable Moment published in a recent issue of JAMA Internal Medicine, Wickerman and colleagues¹ discuss an important and a pervasive issue of keeping hospitalized patients nil per os (NPO) for long periods, before imaging tests and procedures. They give an example of a patient with diabetes who developed hypoglycemia after being unnecessarily kept NPO for an imaging procedure to illustrate how a seemingly benign NPO order can cause adverse events.

中文翻译：

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手术前每人每次手术无偿—重新评估实践的时间

致编辑在最近一期的JAMA内科医学杂志上发表的“可教的时刻”中，Wickerman及其同事¹讨论了一个重要且普遍存在的问题，即在进行影像学检查和程序之前，长期保持住院患者零口服（NPO）无效。他们举了一个糖尿病患者的例子，该患者在为影像学检查不必要地保留NPO后出现了低血糖症，以说明看似良性的NPO顺序如何引起不良事件。