Discussion
Painful muscular contractions caused by prolonged exposure to environmental heat, is known as :
Answer: C
The condition is heat cramps.
Heat cramps are painful involuntary spasms of the working muscles, often the calves, thighs and abdomen, during or after prolonged exercise in the heat. They are linked to heavy sweating with loss of salt and water and to muscle fatigue, and they respond to rest, stretching and fluid and salt replacement.
Heat syncope is fainting from blood pooling in the skin and legs. Heat exhaustion is a systemic state of weakness, nausea and dizziness from fluid loss. Heat stroke is the most serious, a failure of temperature regulation with a core temperature above about 40°C and confusion. None of these is defined by painful muscle contractions.
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