With Regard to Medications,herbs,boosters,and Other Substances Normally Encountered by Pregnant

With regard to medications,herbs,boosters,and other substances normally encountered by pregnant women,what is important for the nurse to be aware of?

A) Both prescription and over-the-counter (OTC) drugs that otherwise are harmless can be made hazardous by metabolic deficiencies of the fetus.
B) The greatest danger of drug-caused developmental deficits in the fetus is observed in the final trimester.
C) Killed-virus vaccines (e.g. ,tetanus) should not be administered during pregnancy,but live-virus vaccines (e.g. ,measles) are permissible.
D) No convincing evidence exists that secondhand smoke is potentially dangerous to the fetus.