There is also a patch test in which an ethanol-soaked pad is applied to the skin.If it causes reddening after 10 or 15 minutes, there is a high likelihood that the person is ALDH2-deficient.

• 还有一个皮肤试验，将用乙醇浸泡过的布垫敷到皮肤上，如果10到15分钟后引起皮肤发红 ，那么该人极有可能该人是ALDH2缺陷患者。