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B Vitamins

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Also known as: Vitamin B complex
Formal name: B1 (thiamine or thiamin); B2 (riboflavin); B3 (niacin); B5 (pantothenic acid); B6 (pyridoxal phosphate); B7 (biotin)
Related tests: Vitamin B12 and Folate

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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.

Evert, A. (Updated 2011 February 9) Thiamine. MedlinePlus Medical Encyclopedia [On-line information]. Available online at http://www.nlm.nih.gov/medlineplus/ency/article/002401.htm. Accessed March 2011.

(Revised 2010 May 13). Vitamin B Complex. American Cancer Society [On-line information]. Available online at http://www.cancer.org/Treatment/TreatmentsandSideEffects/ComplementaryandAlternativeMedicine/HerbsVitaminsandMinerals/vitamin-b-complex through http://www.cancer.org. Accessed March 2011.

Vorvick, L. (Updated 2009 March 14). Niacin. MedlinePlus Medical Encyclopedia [On-line information]. Available online at http://www.nlm.nih.gov/medlineplus/ency/article/002409.htm. Accessed March 2011.

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(© 1995-2011). Unit Code 81019: Thiamin (Vitamin B1), Whole Blood. Mayo Clinic Mayo Medical Laboratories [On-line information]. Available online at http://www.mayomedicallaboratories.com/test-catalog/Overview/81019 through http://www.mayomedicallaboratories.com. Accessed March 2011.

(© 1995-2011). Unit Code 80230: Riboflavin (Vitamin B2), Plasma or Serum. Mayo Clinic Mayo Medical Laboratories [On-line information]. Available online at http://www.mayomedicallaboratories.com/test-catalog/Overview/80230 through http://www.mayomedicallaboratories.com. Accessed March 2011.

(© 1995-2011). Unit Code 91379: Niacin (Vitamin B3). Mayo Clinic Mayo Medical Laboratories [On-line information]. Available online at http://www.mayomedicallaboratories.com/test-catalog/Overview/91379 through http://www.mayomedicallaboratories.com. Accessed March 2011.

(© 1995-2011). Unit Code 91902: Vitamin B7, H (Biotin). Mayo Clinic Mayo Medical Laboratories [On-line information]. Available online at http://www.mayomedicallaboratories.com/test-catalog/Overview/91902 through http://www.mayomedicallaboratories.com. Accessed March 2011.

Vorvick, L. (Updated 2009 March 7). Pantothenic acid and biotin. MedlinePlus Medical Encyclopedia [On-line information]. Available online at http://www.nlm.nih.gov/medlineplus/ency/article/002410.htm. Accessed March 2011.

Allee, M. and Baker, M. (Updated 2009 May 18). Riboflavin Deficiency. eMedicine [On-line information]. Available online at http://emedicine.medscape.com/article/125193-overview through http://emedicine.medscape.com. Accessed March 2011.

Nguyen-Khoa, D. et. al. (Updated 2009 September 9). Beriberi (Thiamine Deficiency) eMedicine [On-line information]. Available online at http://emedicine.medscape.com/article/116930-overview through http://emedicine.medscape.com. Accessed March 2011.

Frye, R. and Jabbour, S. (Updated 2010 May 26). Pyridoxine Deficiency. eMedicine [On-line information]. Available online at http://emedicine.medscape.com/article/124947-overview through http://emedicine.medscape.com. Accessed March 2011.

Hegyi, V. and Schwartz, R. (Updated 2010 July 1). Dermatologic Manifestations of Pellagra. eMedicine [On-line information]. Available online at http://emedicine.medscape.com/article/1095845-overview through http://emedicine.medscape.com. Accessed March 2011.

Clarke, W. and Dufour, D. R., Editors (© 2006). Contemporary Practice in Clinical Chemistry: AACC Press, Washington, DC. Pp 403-406.

Wu, A. (© 2006). Tietz Clinical Guide to Laboratory Tests, 4th Edition: Saunders Elsevier, St. Louis, MO. Pp 766-767, 808-809, 960-963, 1022-1023.

Henry's Clinical Diagnosis and Management by Laboratory Methods. 21st ed. McPherson R, Pincus M, eds. Philadelphia, PA: Saunders Elsevier: 2007, Pp 382-383.

(Reviewed November 2007) Linus Pauling Institute. Micronutrient Information Center: B6. Available online at http://lpi.oregonstate.edu/infocenter/vitamins/vitaminB6/ through http://lpi.oregonstate.edu. Accessed April 2011. 

(Updated August 2008) Linus Pauling Institute. Micronutrient Information Center: Biotin. Available online at http://lpi.oregonstate.edu/infocenter/vitamins/biotin/ through http://lpi.oregonstate.edu. Accessed April 2011.

(Reviewed June 2007) Linus Pauling Institute. Micronutrient Information Center: Niacin. Available online at http://lpi.oregonstate.edu/infocenter/vitamins/niacin/ through http://lpi.oregonstate.edu. Accessed April 2011.

(April 2008) Linus Pauling Institute. Micronutrient Information Center, Pantothenic Acid. Available online at http://lpi.oregonstate.edu/infocenter/vitamins/pa/ through http://lpi.oregonstate.edu. Accessed April 2011.

(June 2007) Linus Pauling Institute. Micronutrient Information Center, Riboflavin. Available online at http://lpi.oregonstate.edu/infocenter/vitamins/riboflavin/ through http://lpi.oregonstate.edu. Accessed April 2011.

(June 2007) Linus Pauling Institute. Micronutrient Information Center, Thiamin. Available online at http://lpi.oregonstate.edu/infocenter/vitamins/thiamin/ through http://lpi.oregonstate.edu. Accessed April 2011.