It's also worth re-doing if you did one years ago. A lot of things have changed. After some research of what actually matters they now concentrate on the stuff that saves someone - rather than the 'correct' ratio of breaths.
WARNING & DISCLAIMER:
SELECT AND USE OUTDOORS AND SURVIVAL EQUIPMENT, SUPPLIES AND TECHNIQUES AT YOUR OWN RISK. Information posted
on this forum is not reviewed for accuracy and may not be reliable, use at your own risk. Please
review the full WARNING & DISCLAIMER about information on this
site.