Question 问题：

An ED patient who takes metformin requires a CT with IV contrast. Must this patient have metformin held for 48 hours? 

一个服用二甲双胍急诊患者需要做静脉造影剂（增强）CT。这个患者必须停服二甲双胍48个小时吗？

Answer 答案：

There is no evidence that supports discontinuing metformin prior to and after administering iodinated contrast if a patient has an eGFR of at least 30 and has no evidence acute kidney injury。

没有证据支持肾小球滤过率大于30并没有急性肾损伤患者在给含碘造影剂前和后停止二甲双胍。

参考文献：

Emerg Radiol.2020;27:115