In what scenario is In-Water Recompression considered?

In-Water Recompression is considered primarily when there is no available recompression facility and the diver is experiencing significant symptoms of decompression sickness (DCS). This option highlights the critical situation in which immediate medical intervention is mandated, even when on-site hyperbaric chambers or medical facilities are not accessible. In such circumstances, In-Water Recompression can provide a temporary, yet potentially life-saving, measure.

The focus of this approach is on managing the symptoms of DCS while awaiting transfer to a proper medical facility. It underscores the importance of quick decision-making in emergency situations, reflecting a deep understanding of diver safety protocols and the urgency required when faced with serious health consequences.

The other scenarios do not justify the use of In-Water Recompression. Initiating In-Water Recompression as a primary response to divers in distress disregards the protocols established for medical emergencies, which focus on assessment and stabilization first. It is not performed after every dive with decompression stops, as this could be unnecessary and expose divers to risks if they are asymptomatic. Similarly, requiring it during every returning dive would be overly cautious and impractical, given that not all dives result in adverse effects necessitating such measures.