[1] Heat syncope is caused by peripheral vessel dilation, resulting in diminished blood flow to the brain and dehydration.

Faintness, dizziness, headache, increased pulse, restlessness, nausea, vomiting, pale/clammy skin, and brief loss of consciousness.

If the patient developed symptoms while engaging in physical activity and high temperatures it will then be a true case of heat syncope.

Finally, drinking plenty of water with electrolytes is imperative when engaging in physical activity in hot weather.

Water containing salt, or another drink containing electrolytes, is administered slowly, and the patient is moved to a cooler area, such as the shade.