What is the correct action for a nurse when a pregnant woman has not received a tetanus vaccine?

The correct action for a nurse in this situation is to administer the vaccine to pregnant women at any gestational age. This approach is aligned with the recommendations from health authorities regarding maternal vaccination practices.

Administering the tetanus vaccine during pregnancy is essential for protecting both the mother and the fetus. Tetanus can pose serious health risks, and the vaccine is safe to give throughout the entire pregnancy. Vaccination can help in generating antibodies that may be passed on to the baby, providing them additional protection against tetanus during their early life.

Delaying vaccination or setting specific guidelines around when to administer the vaccine based on gestational age can leave both the mother and the fetus vulnerable to preventable diseases. It's also important to note that recommending vaccination only after delivery can miss the critical opportunity to protect the infant from potential infection during their most vulnerable period.

Overall, this choice supports both maternal and fetal health without unnecessary delays in receiving an important vaccine.