Final answer:
Heat cramps are the injury that can occur from muscle cramps in the abdominal wall or limbs when exposed to high temperatures, resulting from significant electrolyte, especially sodium, losses.
Step-by-step explanation:
When experiencing muscle cramps in the abdominal wall or limbs due to high environmental temperatures, the heat related injury that may occur is D. Heat cramps. These are often a result of significant electrolyte loss, particularly sodium (Na), due to excessive sweating. If the body is not adapted to the heat, symptoms such as muscular cramps in the extremities, oedema, headache, nausea, and diarrhoea can occur. While other heat-related injuries include heat rash, heat exhaustion, and heat stroke, they are typically characterized by different symptoms and are more severe than heat cramps.
Preventative measures for avoiding heat cramps may involve proper hydration and ensuring adequate salt intake during prolonged exposure to heat, especially for individuals engaging in physical activity. If someone does develop heat cramps, treatment options include rest, drinking electrolyte-rich fluids, gentle stretching, and cooling the body down.