When I got my new Escape in February, I decided to get a new first aid kit, instead of the hodge-podge of stuff and out-dated stuff. I put it under the passenger seat, and didn't even bother opening it to see what was in there.
Well, Friday night about 10 pm (quite dark outside) while camping, I twisted my left ankle, and fell with all of my weight on my right knee. My flashlight went flying, so I reached for the little flashlight on my keychain (thanks Mike & Chell from TnTTT!!!!) .
With some help from the campers who were two sites from me, I got back to my campsite and they helped me open my new first aid kit. I was really diappointed to find out there were only a couple of small gauze pads, a bit of tape and mostly bandaids. But, just enough to put something on my knee so I could go to the ER. 5 stitches, 5 x-rays of the patella (knee-cap, and not broken, thank goodness), and 5 hours later I got back to the TD.
I did have to cut my 3 day weekend of camping short, because I couldn't seem to stay off of my leg at the campsite. But, that's OK--it is easier to take care of the knee at home.
So, the moral to the story is check the contents of your first aid kit, replenish if you use something, and replace outdated stuff. Don't rely on what the package says. Obviously it looked complete when I bought it. I have supplies from home to put in the Escape's first aid kit so it will be complete. Bandaids are good, but gauze will cover those larger wounds. Tape, and especially that stretchy tape that sticks to itself is a great choice. An Ace bandage would be good for sprains, or to hold larger bandaids in place.
Also, keep a phone and a flashlight on you so you have it where it won't go flying. The kids found my flashlight about 10 ft from me--no wonder I couldn't find it.