Prenatal Diagnosis of Northern California provides first trimester screening, fetal ultrasound and genetic counseling services. The center employs a physician, genetic counselors, certified ultrasound technicians and medical assistants. It specializes in various diagnostic testing services, including chorionic villus sampling and amniocentesis. Prenatal Diagnosis of Northern California s genetic counselors offer information and support to families who have members with birth defects and genetic disorders and to families who may be at risk for a variety of inherited conditions. The center s counselors also serve as educators and resource people for other health care professionals and for the general public. It maintains a location in Sacramento, Calif.