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Vitamin A

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Also known as: Retinol
Formal name: Retinol

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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.

Sources Used in Current Review

Wisse, B. (2014 May 10 Updated). Hypervitaminosis A. MedlinePlus Medical Encyclopedia [On-line information]. Available online at https://www.nlm.nih.gov/medlineplus/ency/article/000350.htm. Accessed on 8/29/15.

Dugdale, D. (2013 November 1 Updated). Vitamin A blood test. MedlinePlus Medical Encyclopedia [On-line information]. Available online at https://www.nlm.nih.gov/medlineplus/ency/article/003570.htm. Accessed on 8/29/15.

Frank, E. et. al. (2015 July Updated). Vitamins. ARUP Consult [On-line information]. Available online at http://www.arupconsult.com/Topics/Vitamins.html?client_ID=LTD#tabs=0. Accessed on 8/29/15.

Ansstas, G. et. al. (2014 June 11 Updated). Vitamin A Deficiency. Medscape Drugs & Diseases [On-line information]. Available online at http://emedicine.medscape.com/article/126004-overview. Accessed on 8/29/15.

Rosenbloom, M. and Gentili, A. (2014 October 14 Updated). Vitamin Toxicity. Medscape Drugs & Diseases [On-line information]. Available online at http://emedicine.medscape.com/article/819426-overview. Accessed on 8/29/15.

(© 1995–2015). Vitamin A, Serum. Mayo Clinic Mayo Medical Laboratories [On-line information]. Available online at http://www.mayomedicallaboratories.com/test-catalog/Clinical+and+Interpretive/60298. Accessed on 8/29/15.

(Sept 29, 2009) Lieber C. Relationships Between Nutrition, Alcohol Use, and Liver Disease. National Institute on Alcohol Abuse and Alcoholism. Available online at http://pubs.niaaa.nih.gov/publications/arh27-3/220-231.htm. Accessed October 2015.

Sources Used in Previous Reviews

Schwartz, R. et. al. (Updated 2011 January 7). Dermatologic Manifestations of Vitamin A Deficiency. eMedicine [On-line information]. Available online at http://emedicine.medscape.com/article/1104441-overview. Accessed March 2011.

Ansstas, G. and Thakore, J. (Updated 2010 December 28). Vitamin A Deficiency. eMedicine [On-line information]. Available online at http://emedicine.medscape.com/article/126004-overview. Accessed March 2011.

Eledrisi, M. et. al. (Updated 2009 September 2). Vitamin A Toxicity. eMedicine [On-line information]. Available online at http://emedicine.medscape.com/article/126104-overview. Accessed March 2011.

Dugdale, D. (Updated 2009 November 15). Vitamin A test. MedlinePlus Medical Encyclopedia [On-line information]. Available online at http://www.nlm.nih.gov/medlineplus/ency/article/003570.htm. Accessed March 2011.

Vorvick, L. (Updated 2009 November 1). Beta-carotene test. MedlinePlus Medical Encyclopedia [On-line information]. Available online at http://www.nlm.nih.gov/medlineplus/ency/article/003571.htm. Accessed March 2011.

Dugdale, D. (Updated 2010 May 23). Hypervitaminosis A. MedlinePlus Medical Encyclopedia [On-line information]. Available online at http://www.nlm.nih.gov/medlineplus/ency/article/000350.htm. Accessed March 2011.

Frank, E. et. al. (Updated 2010 December). Vitamins. ARUP Consult [On-line information]. Available online at http://www.arupconsult.com/Topics/Vitamins.html?client_ID=LTD. Accessed March 2011.

(© 1995-2011). Unit Code 60298: Vitamin A, Serum. Mayo Medical Laboratories [On-line information]. Available online at http://www.mayomedicallaboratories.com/test-catalog/print.php?unit_code=60298. Accessed March 2011.

Clarke, W. and Dufour, D. R., Editors (© 2006). Contemporary Practice in Clinical Chemistry: AACC Press, Washington, DC. Pp 400-401.

Wu, A. (© 2006). Tietz Clinical Guide to Laboratory Tests, 4th Edition: Saunders Elsevier, St. Louis, MO. Pp 1116-1119.

Barclay, L. (2010 December 8). Vitamin A May Reduce Deaths From Measles and Diarrhea in Children. Medscape Today from Medscape Medical News [On-line information]. Available online at http://www.medscape.com/viewarticle/733832. Accessed March 2011.