I.A roach.Syncope is a brief lo of co ciou e with colla e resulting from tra ient brain dysfunction based on decreased blood flow or neurologic i ult.

• 诊断思路 晕厥是暂时性意识丧失并跌倒，它是因为血流减少或神经损伤而造成一过性大脑功能失调而引起的。