The nurse knows that a normal physiologic alteration of the circulatory system associated with thromboembolic events in pregnancy is:

Choice A rationale

Rh(D) immunoglobulin prevents the formation of Rh antibodies in Rh-negative mothers. This is crucial to prevent Rh sensitization, which can lead to hemolytic disease of the newborn in current and future pregnancies.

Choice B rationale

Rh(D) immunoglobulin does not prevent the formation of Rh antibodies in newborns who are Rh positive. Instead, it works by preventing the mother's immune system from recognizing Rh-positive fetal cells.

Choice C rationale

Rh(D) immunoglobulin does not destroy Rh antibodies in Rh-negative mothers. Its purpose is to prevent the formation of these antibodies in the first place.

Choice D rationale

Rh(D) immunoglobulin does not destroy Rh antibodies in newborns who are Rh positive. The newborn's immune system is not targeted by this immunoglobulin.

Choice A rationale

Increasing folic acid intake immediately is recommended because it helps prevent neural tube defects, which can occur very early in pregnancy, often before a woman knows she is pregnant.

Choice B rationale

Starting folic acid intake one week before her period is not sufficient. Folic acid needs to be taken consistently before conception and during early pregnancy to be effective.

Choice C rationale

Waiting until pregnancy is confirmed may be too late to prevent neural tube defects, which form in the early weeks of pregnancy.

Choice D rationale

If she misses her period, it might already be too late to prevent neural tube defects. Consistent intake of folic acid before and during early pregnancy is essential.