Answer to Question 1
Ans: D
Because sleep habits have been implicated with SIDS, it is recommended that healthy infants up to the age of 6 months sleep on their back (rather than the stomach) on a firm surface in a safety-approved crib. Placing infants in a side-lying position is not recommended because babies who sleep on their sides are more likely to roll onto their abdomen.
Answer to Question 2
Ans: C
The embryonic stage of prenatal development occurs from the fourth to the eighth week of pregnancy. Because this is a period of rapid growth and change, the fetus is especially vulnerable to any factor that might cause congenital anomalies, such as maternal use of alcohol and nicotine. Although the other choices are appropriate in educating the pregnant woman, they do not prevent congenital anomalies.