A female patient comes to the clinic after missing one menstrual period. She lives in a house beneath electrical power lines which is located near an oil field. She drinks two caffeinated beverages a day, is a daily beer drinker, and has not stopped eating sweets. She takes a multivitamin and exercises daily. She denies drug use. Which finding in the history has the greatest implication for this patient's plan of care?

A) Electrical power lines are a potential hazard to the woman and her fetus.
B) Living near an oil field may mean the water supply is polluted.
C) Alcohol exposure should be avoided during pregnancy due to teratogenicity.
D) Eating sweets may cause gestational diabetes or miscarriage.

Stages of development include ovum, embryonic, and fetal. The beginning of the fourth week to the end of the eighth week comprise the embryonic period. Teratogenicity is a major concern because all external and internal structures are developing in the embryonic period. A pregnant woman should avoid exposure to all potential toxins during pregnancy, especially alcohol, tobacco, radiation, and infections during embryonic development. Living in a house beneath power lines is not the greatest implication in this patient's plan of care as there are no definite risks to the developing fetus. Living near an oil field has no definite risks to the fetus. Eating sweets may contribute to maternal obesity, large for gestational age fetus, and maternal gestational diabetes but does not have the immediate implication of a daily beer drinker which can cause fetal alcohol syndrome.