Recently, my hubby was sent on a first aid/cpr course by his work. The course was offered by the Red Cross, and it quite intensive training. The last first aid course I took, was in 1992 when I did the babysitters course. It offered a quick glimpse at CPR/First Aid; while I know I need to re-certify (they modify the guidelines every 5 years or so) its something I put off doing. Once my oldest was born, I regretted it...especially when introducing solids - i was petrified of choking. However, given the length of the courses, as a SAHM it is difficult to find the time available to attend.
10 days after completing the course, hubby got to put his first aid skills to the test. He and the boys were playing "try and catch me" (a game where they run around the loop on our main floor) and Jules somehow went really hard into the corner of a wall (wher 2 of our walls meet). He got a pretty nasty cut, and wasn't immediately able to move his arm (or wouldn't move it because of the pain). Hubby was able to assess everything and figure out it most likely was not broken) however, when he was refusing a freezie, I knew it was still pretty serious; he was clammy, pale and felt nauseous, started to go into shock. We moved him to the couch and had him lie down for a little while, and after about 30 minutes he perked up and was asking for a freezie.
Had I been alone, I would have been fine treating him (even without first aid/cpr) but it was nice to know that the bone wasn't broken.
If you haven't taken a course, or need re-certification, I would urge you to look into doing so.