Teratogenic agents can be environmental chemicals, maternal metabolic factors, drugs, or infections. A number of environmental chemicals have been linked with birth defects in exposed fetuses including lead, methyl mercury, and polychlorinated biphenyls.
What are some teratogens environmental influences on prenatal development?
Other teratogens that affect prenatal development include radiation, pollution, and infectious disease. Radiation increases the risk of childhood cancer, as well as emotional and behavioral disorders; because of this, it is recommended that pregnant women avoid x-rays unless absolutely necessary.
What are 5 environmental things that could affect the pregnancy?
Environmental factors which have been implicated in adverse pregnancy outcome include smoking, video display terminals, anesthetic gases, antineoplastic drugs and exposure to lead, selenium and inorganic mercury.
What are 4 environmental risks pregnancy?
These chemicals include commonly known hazards such as lead, mercury, and environmental tobacco smoke, as well as some pesticides, solvents, products containing chlorine, and other chemicals referred to as “persistent organic pollutants.” The fetus is particularly vulnerable to environmental chemicals that can disrupt …
What chemicals are teratogens?
Teratogenic agents include infectious agents (rubella, cytomegalovirus, varicella, herpes simplex, toxoplasma, syphilis, etc.); physical agents (ionizing agents, hyperthermia); maternal health factors (diabetes, maternal PKU); environmental chemicals (organic mercury compounds, polychlorinated biphenyl or PCB.
What is an example of an environmental influence during the prenatal stage?
Environmental influences ranging from radioactivity and stress in the outside world to drugs, chemicals, hormones, and viruses in the mother’s bloodstream can affect prenatal development. Such threats affect the health of the fetus in several ways.
What environmental factors can affect the unborn baby?
Various epidemiological studies have suggested associations between environmental exposures such as air pollution, environmental tobacco smoke, pesticides, solvents, metals, radiation, water contaminants (disinfection by-products, arsenic, and nitrates) and chemicals (persistent organic pollutants (POPs), Bisphenol A.
Which environmental hazards can result in fetal abnormalities?
Contents
- 2.1 Alcohol.
- 2.2 Tobacco smoke.
- 2.3 Mercury.
- 2.4 Lead.
- 2.5 Dioxin.
- 2.6 Air pollution.
- 2.7 Pesticides.
- 2.8 Benzenes.
What are 3 examples of teratogens?
Common teratogens include some medications, recreational drugs, tobacco products, chemicals, alcohol, certain infections, and in some cases, uncontrolled health problems in the birthing parent. Alcohol is a well-known teratogen that can cause harmful effects on the fetus after exposure at any time during pregnancy.
What are the 4 P’s of labor?
A: Many factors come into play to determine how long a labor will last. Basically labor length is influenced by the Six P’s: passage, passenger, power, position, psyche or perception and parity.
