A recommendation to prevent neural tube defects (NTDs) is the supplementation of what?

a. Vitamin A throughout pregnancy
b. Folic acid for all women of childbearing age
c. Folic acid during the first and second trimesters of pregnancy
d. Multivitamin preparations as soon as pregnancy is suspected


ANS: B
The widespread use of folic acid among women of childbearing age has decreased the incidence NTDs. In the United States, the rates of NTDs have declined from 1.3 per 1000 births in 1990 to 0.3 per 1000 after the introduction of mandatory folic acid supplementation in food in 1998. Vitamin A is not related to the prevention of NTDs. Folic acid supplementation is recommended for the preconceptual period, as well as during the pregnancy. The NTD is a failure of neural tube closure during early development, the first 3 to 5 weeks.

Nursing

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Nursing