High levels of AFP may suggest that the developing baby has a neural tube defect such as spina bifida or anencephaly.
However, the most common reason for elevated AFP levels is inaccurate dating of the pregnancy.
Screening tests do not look only at results from the blood test.
It can be caused by chemical reactions, electrical energy, subatomic motions or stress on a crystal, which all are ultimately caused by Spontaneous emission.The blood sample is then sent to the laboratory for testing. Except for the discomfort of drawing blood, there are no known risks or side effects associated with the quad screen test.The quad screen test is performed between the 16th and 18th week of pregnancy.Luminescence occurs in some minerals when they are exposed to low-powered sources of ultraviolet or infrared electromagnetic radiation (for example, portable UV lamps), at atmospheric pressure and atmospheric temperatures.This property of these minerals can be used during the process of mineral identification at rock outcrops in the field, or in the laboratory.Melissa Cook, 48, from California, is suing a 50-year-old deaf postal worker from Georgia for custody of triplets she carried for him as a surrogate, claiming he cannot care for them (left, during surrogate pregnancy)According to Cook, CM became 'scared' and admitted through his lawyer that he did not have the financial means to raise triplets, before demanding that she abort all three babies despite them being healthy.Cook says that the father, named only as CM, tried to force her into aborting one of the children because he claimed he couldn't afford to care for it, and says she now doubts the level of care all the babies are receiving He also threatened to withdraw money for her hospital care, she says, and said he would not pay for the children's hospital care because triplets are born significantly earlier than twins or single children.The quad screen results may warrant additional testing.The reasons to pursue further testing or not vary from person to person and couple to couple.This distinguishes luminescence from incandescence, which is light emitted by a substance as a result of heating.Historically, radioactivity was thought of as a form of "radio-luminescence", although it is today considered to be separate since it involves more than electromagnetic radiation.