A current recommendation to prevent neural tube defects is the supplementation of:
a. Vitamin A throughout pregnancy.
b. Multivitamin preparations as soon as pregnancy is suspected.
c. Folic acid for all women of childbearing age.
d. Folic acid during the first and second trimesters of pregnancy.
ANS: C
The widespread use of folic acid among women of childbearing age is expected to decrease the incidence of spina bifida significantly. Vitamin A and multivitamin preparations do not have a relation to the prevention of spina bifida. Folic acid supplementation is recommended for the preconceptual period and during the pregnancy. Only 42% of women actually follow these guidelines.
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