Final answer:
The most difficult area to check for a submerged drowning victim is in murky or dark waters due to low visibility and the lack of visible distress signs from the victim. A quick reaction and administering CPR immediately after removing the victim from the water increases the chances of recovery.
Step-by-step explanation:
The area where checking for a submerged victim is most difficult during an Emergency Action Plan (EAP) for a missing person, especially if they are suspected to be in the water, is in murky or dark waters. This is due to the lack of visibility and the fact that a person who is drowning may not show obvious signs of distress or be able to signal for help. Reality contradicts the myth that people who are drowning will shout and wave for help; in reality, they are often unable to call out due to a muscular spasm that seals their airway, and their movements may not be visible above the water. Furthermore, checking for submerged victims is complicated by the need to avoid potential hazards to the rescuer, such as diving into shallow or unclear water, which could result in injury.
It's essential to remember that a quick response is critical in saving an unconscious person from the water and that successful recovery from incidents such as drowning can depend on how swiftly CPR is administered once the person is brought to stable ground. Contrary to the myth that it's too late to save someone who is unconscious in the water, there is still a chance of recovery if the airway is sealed and CPR is started promptly.