Teratogens are easily classified in three different groups, these being drugs, disease and environmental. These three classifications are very broad. To be slightly more specific some commonly heard of agents classified as teratogens are given as examples. Agents classified as drugs, include prescription, non-prescription and illegal. Some frequently heard of conditions requiring …show more content…
Research provided from the University of Iowa's on teratogens explains some of the possible outcome to exposure to certain teratogens. Listed birth defects resulting from exposure to teratogens, range from prenatal death, to physical and mental abnormalities.
Exposure to medications or drugs during pregnancy can result in abnormalities such as withdrawal symptom, respiratory problems, growth retardation, developmental retardation, congenital heart defects, caudal deficiency and CNS defects. Known prenatal birth defects resulting from environmental toxins such as Lead, mercury or PCB's are miscarriage, CNS damage, spasticity, mental retardation, skin discoloration and low birth weight. Only some defects resulting from diseases are listed, these are CNS disease, neonatal death, failure to thrive, infection, miscarriage, abnormal teeth, limb reduction, hearing impairment and mental deficiency. Research provided from the University of Dakota support these results to teratogens. The University of Dakota and The University of Michigan suggest that conditions resulting from exposure to teratogens can vary in severity depending on factors such as age and prolonged