NOTE: This article is based on research that utilizes the sources cited here as well as the collective experience of the Lab Tests Online Editorial Review Board. This article is periodically reviewed by the Editorial Board and may be updated as a result of the review. Any new sources cited will be added to the list and distinguished from the original sources used. To access online sources, copy and paste the URL into your browser.
(©2015) Stanford Children's Health. For Your Health. Available online at http://www.stanfordchildrens.org/en/health-topics?. Accessed October 2015.
(©January 2014) American College of Obstetricians and Gynecologists. Pregnancy, Frequently Asked Questions. Available online at http://www.acog.org/-/media/For-Patients/faq133.pdf?dmc=1&ts=20150917T1442554275. Accessed October 2015.
(September 27, 2010) Womenshealth.gov. Pregnancy, Prenatal Care and Tests. Available online at http://www.womenshealth.gov/pregnancy/you-are-pregnant/prenatal-care-tests.html. Accessed October 2015.
(June 29, 2015) American Academy of Pediatrics. Tests and Screenings during Pregnancy. Available online at https://www.healthychildren.org/English/ages-stages/prenatal/Pages/Tests-During-Pregnancy.aspx. Accessed October 2015.
(March 2015) March Of Dimes. Prenatal Tests. Available online at http://www.marchofdimes.org/pregnancy/prenatal-tests.aspx. Accessed October 2015.
(July 31, 2015) Centers for Disease Control and Prevention. Preconception Health and Health Care, Information for Health Professionals. Available online at http://www.cdc.gov/preconception/hcp/index.html. Accessed October 2015.
(August 25, 2105) Centers for Disease Control and Prevention. During Pregnancy. Available online at http://www.cdc.gov/pregnancy/during.html. Accessed October 2015.
For additional sources, see the overview article on Pregnancy.