With Regard to Medications,herbs,immunizations,and Other Substances Normally Encountered,the Nurse Should

With regard to medications,herbs,immunizations,and other substances normally encountered,the nurse should be aware of which of the following?

A) Both prescription and over-the-counter ( OTC ) drugs that otherwise are harmless can become hazardous by metabolic deficiencies of the fetus.
B) The greatest danger of drug-caused developmental deficits in the fetus is seen in the final trimester.
C) Killed-virus vaccines ( e . g ., tetanus ) should not be given 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.