Heat related illnesses can be grouped as:
1. Exertion associated collapse
2. Heat exhaustion
3. Heat stroke
It is the most common heat related illness which occurs due to a low cardiac output which is insufficient to support the increased circulatory demand required for heat dissipation. The hypovolemia is caused by water and/or sodium depletion, vasodilation and increased skin blood flow. In heat exhaustion, temperature is usually <41*C and heat dissipation is still functioning so that the child appears flushed and sweaty, CNS function is preserved, but may experience mild confusion, irritability and poor co-ordination.
….to be continued..
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