Amniocentesis is typically performed at about which week of pregnancy?

Since 1996, neural-tube defects have decreased by over 25 percent in the United States and Canada. No decrease has occurred in Europe. What is the reason for the decrease in the United States and Canada?

Environmental changes in climate are responsible. Physicians routinely check for neural-tube defects at birth, thus causing the decrease. Cereals and breads in the United States and Canada are now fortified with folic acid. Europeans are genetically predisposed to neural-tube defects.

What diagnosis is most appropriate for Kristi? Her weight is stable but she reports that, several times a week, she "loses control" and "stuffs her face" eating lots of cookies and ice cream, then throws up by tickling her throat

a) Anorexia nervosa b) Bulimia nervosa c) Binge eating disorder d) She would not be diagnosed because her weight is stable