A crewmember is severely seasick, vomiting repeatedly, and is now lying below decks, refusing to move. What is the safety concern and how should the skipper manage it?

A. Reduce speed to Force 2 equivalent and wait for them to recover

B. Seasickness is not a safety issue — let them rest below and carry on

C. Severe seasickness causes dehydration, exhaustion, and reduced cognitive function — the incapacitated crew reduces effective watch keeping. Keep them on deck in fresh air if possible, administer seasickness medication early (before onset), ensure they are clipped on, and redistribute watches

D. Give them water only and put them in a sleeping bag to prevent hypothermia

A. Severe hypothermia — perform CPR immediately regardless of pulse

B. Heat exhaustion — cool the casualty and give cold water

C. Mild to moderate hypothermia (core temp ~32–35°C) — remove wet clothing, insulate from wind and cold, warm with blankets and foil, give warm sweet drinks if conscious and no injury suspected, handle gently and do NOT rub limbs

D. Mild hypothermia — exercise to generate body heat

A. Start rescue breaths (5 initial breaths) immediately, then begin standard CPR (30 compressions : 2 breaths) — airway and breathing take priority as drowning is a hypoxic event

B. Place in recovery position and monitor — never start CPR on a drowning victim who may vomit

C. Clear the airway by holding the casualty upside down first

D. Start chest compressions only — do not give rescue breaths