Who is giving the course?
The American Red Cross gives several first aid courses at various levels, generally for $50. I find it hard to imagine that 1) first aid would be different offshore than on land and 2) that anyone in any circumstance would want someone who had just 4 days of instruction attempting more advanced medical treatment on them.
I wonder...is there a medical service that can be accessed via
VHF or
SSB whereby someone with basic skills but a very advanced medical kit (sutures etc) could actually follow the guidance of a real medical professional over the
radio and render meaningful care and treatment???
Just my $0.02