Rusty blade cut off a finger. Tetanus shot?

Tetanus is a serious disease, the prognosis is very poor, focus on prevention, so if the rusty blade cut the finger should be tetanus. And at the same time to clean up the wound, local dressing, disinfection treatment, to ensure that the incision will not be contaminated. Because tetanus is good at deep incision, easy to form an anaerobic environment, conducive to tetanus infection, so if the wound is shown, should be timely tetanus vaccine injection, to achieve prevention.