Which of the following variables determine the extent of teratogenic drug effects? Select all that apply
A) Maternal health history
B) Molecular weight of the drug
C) Stage of pregnancy when the drug was taken
D) Duration of drug exposure
E) Fetal blood type
Ans: B, C, D
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The nature and extent of teratogenic effects are the result of numerous factors, including the timing and molecular weight of the drug and the gestational age of the embryo or fetus. Fetal blood type and the health history of the mother are not key variables.
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