Rusty nail wound at work. what should i do?

Tetanus/ clean: Clean the wound well with soap and warm water. Tetanus shots are especially important for puncture wounds. Seek medical attention and tetanus shot if you haven't had one in the last ten years. If red, swollen, hot, tender, drainage, red streaking or fever - an infection is likely.

Have it evaluated: Such injuries can potentially be dangerous as one may develop tetanus, or a number of other types of deep infections. If the wound was deep enough they may lead to bone infections. Have the wound properly evaluated and treated to avoid preventable complications.