Yes, do check on your tetanus shot history. If you need it, you need it within 3 days, my doctor told me. ("Ah... is two days and twenty hours okay?")

Tetanus shots prevent tetanus. People can die of tetanus, and it's a really miserable way to die.

A contaminated wound closed with superglue can lead to an abscess.

Art is dead right on all counts. If it's to the bone, you'd best see your doctor. Be on the lookout for red streaks going up your hand/arm, that's an indication of blood poisoning -- your local Emergency Room is indicated. (My brother: four days in Intensive Care.)

And if you're wanting to donate blood, contact the Red Cross and don't waste it.

Sue