They also observe the condition of other support personnel and are alert for signs of fatigue , overexposure , and heat exhaustion .
Diving medical personnel evaluate the fitness of divers before operations begin and are prepared to handle any emergencies which might arise .
personnel also observe the condition of other support personnel and are alert for signs of fatigue , overexposure , and heat exhaustion .
Diving medical personnel evaluate the fitness of divers before operations begin and are prepared to handle any emergencies which might arise .