Syncope must be differentiated from epileptic seizures, although seizures due to brain hypoxia can occur in a syncopal episode.

晕与癫痫发作相鉴别，尽管晕发作时也会发生脑氧引起的癫痫发作。

Head up tilt table testing is not warranted in patients who hae experienced a single syncopal episode without injury in an intermediate or low risk setting.

倾斜试验不推荐用于曾经有过现场所发生过1次晕而没有受伤的患者。