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.

We have included the web address to online sources used in developing and reviewing this article for documentation purposes only. Links included on this Sources page are valid, working links at the time they are posted. Please be aware that the source owner may, from time to time, reorganize the source web site, which can result in broken links on our pages. If you wish to access a source and come across a broken link, you may still be able to access it by entering just the parent web address in your browser's address bar (eg, "www.nih.gov") and then by entering the source title in the site's search feature.

S2
Pagana, Kathleen D. & Pagana, Timothy J. (2001). Mosby’s Diagnostic and Laboratory Test Reference 5th Edition: Mosby, Inc., Saint Louis, MO.

S3
NIDDK (July 1997). Cystic Fibrosis Research Directions [51 paragraphs]. The National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) [NIH Publication No. 97-4200]. Available FTP: http://www.niddk.nih.gov/health/endo/pubs/cystic/cystic.htm

S4
CFF. Sweat Testing Procedure and Commonly Asked Questions [6 paragraphs]. Cystic Fibrosis Foundation [On-line information]. Available FTP: http://www.cff.org/publications01.htm

S5
Tait, J., et. al. (26 March 2001). Cystic Fibrosis [60 paragraphs]. GENEReviews [On-line information]. Available FTP: http://www.genetests.org/, Then log in, then GENEReviews, then Search for Cystic Fibrosis

S6
Mayo Clinic (2001, February 09). What is Cystic Fibrosis? [51 paragraphs]. Mayo Clinic [On-line information]. Available FTP: http://www.mayoclinic.com/invoke.cfm?objectid=2CEBF76F-D36A-4D15-B937BFF91AB51438

S7
MEDLINEplus (2002, January 2, Updated). Cystic Fibrosis [18 paragraphs]. MEDLINEplus Health Information [On-line Information]. Available FTP: http://www.nlm.nih.gov/medlineplus/ency/article/000107.htm

S8
MEDLINEplus (2002, January 2, Updated). Sweat Electrolytes [8 paragraphs]. MEDLINEplus Health Information [On-line Information]. Available FTP: http://www.nlm.nih.gov/medlineplus/ency/article/003630.htm

S9
MEDLINEplus (2002, January 2, Updated). Trypsin and chymotrypsin in stool [9 paragraphs]. MEDLINEplus Health Information [On-line Information]. Available FTP: http://www.nlm.nih.gov/medlineplus/ency/article/003594.htm

S10
Mountain States Genetics (1999, September, Revised). Cystic Fibrosis (CF) [8 paragraphs]. Newborn Screening Practitioner’s Manual [On-line information]. Available FTP: http://www.mostgene.org/pract/prac26.htm

S11
National Institutes of Health (1995, November). Facts About Cystic Fibrosis [33 paragraphs]. National Heart, Lung, and Blood Institute NIH Publication No. 95-3650 [On-line information]. Available FTP: http://www.nhlbi.nih.gov/health/public/lung/other/cf.htm

S12
Quest Diagnostics NEWS (2002, Winter). What is the Best Test to Screen for Cystic Fibrosis? [14 paragraphs]. [On-line serial]. Available FTP: http://www.questdiagnostics.com/hcp/files/02winter_newsletter.pdf

S13
MEDLINEplus (2002, January 2, Updated). Neonatal cystic fibrosis screening [11 paragraphs]. MEDLINEplus Health Information [On-line Information]. Available FTP: http://www.nlm.nih.gov/medlineplus/ency/article/003409.htm

S14
Drkoop (2001). Cystic fibrosis [4 paragraphs]Medical Encyclopedia [On-line information]. Available FTP: http://www.drkoop.com/conditions/ency/article/000107.htm

S15
MEDLINEplus (2002, January 2, Updated). Trypsinogen [8 paragraphs]. MEDLINEplus Health Information [On-line Information]. Available FTP: http://www.nlm.nih.gov/medlineplus/ency/article/003560.htm

S16
Biomedical Hypertext (1999 May 20, last update). Exocrine Secretions of the Pancreas [13 paragraphs]. Colorado State University [On-line information]. Available FTP: http://arbl.cvmbs.colostate.edu/hbooks/pathphys/digestion/pancreas/exocrine.html

S17
UPCMD (1998 – 2002). Cystic Fibrosis [18 paragraphs]. University Pathology Consortium, LLC [On-line information]. Available FTP: http://www.upcmd.com/dot/examples/00218/description.html

S18
Sainato, D., (2002, March). Genetic Testing for CF Going Mainstream? [18 paragraphs]. Clinical Laboratory News [Journal], vol 28

S19
Peter Jacky, PhD, FACMG. Director of Cytogenetics and Molecular Genetics, Airport Way Regional Laboratory, Portland, OR