Signs of autonomic arousal precede tilt-induced psychogenic nonsyncopal collapse among youth

In conclusion, signs of autonomic arousal (increased sweating, heart rate, and blood pressure) often precede tilt-induced PNSC. Sweating prior to fainting may not be useful in distinguishing PNSC from neurally mediated syncope.
Source: Epilepsy and Behavior - Category: Neurology Source Type: research