Birth defects can be diagnosed during pregnancy or after birth, depending on the specific type of birth defect.
A screening test is a procedure that is conducted to see if a woman or baby might have any problems during fetal development.
First trimester screening is a combination of tests completed between weeks 11 and 13 of pregnancy. It is used to look for certain birth defects related to the baby’s heart or chromosomal disorders. This screen includes:
Chlorpyrifos, the active ingredient found in the pesticide Lorsban, affects the nervous system of people, pets, and other animals the same way it affects the target pest. It’s most efficiently absorbed by inhalation or ingestion. Because it is largely used on and around farm lands, agricultural employees and their children are at high risk of exposure -- either by direct handling or crop duster blowover. Residue can also be tracked into the employee’s home even if they do not live on the property where the insecticide treatment occurred, which means their children are also vulnerable to exposure.
Signs and symptoms can appear within minutes to hours after exposure. These effects can last for days or even weeks. During this time, the body is replacing the depleted enzymes in the nervous system so it can function normally again.