Coyote - it is very common for a casualty aboard a vessel who gets a SAR helo launched, not to be anything like as bad as anticipated.
One reason is that a land-based doctor is often consulted by radio/phone and they will always err on the side of caution since they can't see the casualty and make a real assessment for themselves.
The job I mentioned earlier - 250 Nm West of Ireland was for a crewmember with 'appendicitis' , when we turned up, he was standing on the deck quite happily with his suitcase in hand and, we subsequently discovered, didn't stay that long in hospital at Shannon.
Part of the job I'm afraid.