I first learned as an Army cadet in 1987-1992. Then again in 1992-1995 as a reserve army 2nd Lieutenant. Then again as a regular RAF infantry officer from 1995-1998.
When I moved over here in 1999 I got CPR certified to work as a counselor for a youth organization and stayed current while I continued to work with them. The last time I did CPR training was just before our 2nd baby was born - we added the infant CPR to the training too.
The principles remain the same - the details have changed over the years. (4 to 1 vs 15 to 2)
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