Effects of heat and light, unspecified

An employee was assisting offloading truck. A supervisor noticed the employee was sweating excessively and looked pale. The supervisor informed the employee to sit inside the air-conditioned truck and cool off. After a period of time the employee came out of the truck and attempted to continue to work. The employee complained that his hands were cramping. The employee was taken to the hospital. At the hospital, it was noted that the employee had high CK levels possibly due to prior heat illness.