Prescribing Testosterone?
Know all you need to about your patients’ Testosterone status – before you prescribe and while your patients are in treatment. Learn more and check back often for new information.

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Nearly 7 out of 10 people have low levels of vitamin D. Click here to learn more about vitamin D testing.

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Based on client feedback, we have upgraded the Quest Diagnostics Clinical Education website.  We value your input. Please provide feedback about the changes and any suggestions you may have to help us ensure the website serves your Clinical Education needs. Take the survey.

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Testing a panel of 12 single-nucleotide polymorphisms may help identify people at increased risk of atrial fibrillation and stroke, according to a recent study by researchers from the Lund University in Malmö, Sweden, the Broad Institute, Harvard Medical School, Cambridge, MA, and Quest Diagnostics. The award-winning poster may be accessed by ACC attendees through the ACC.14 Attendee Portal.

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Compared to the general population, a woman with a confirmed BRCA1 or BRCA2 mutation is at greater risk of developing cancer during her lifetime—up to an 85% risk of breast cancer and up to a 40% risk of ovarian cancer. Her children, siblings and parents have a 50% chance of having the same autosomal dominant mutation and facing comparable risks.

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Browse by Medical Specialty

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U.S. Preventive Services Task Force: Mission and Methods

The immediate past chair of the U.S. Preventive Services Task Force, Michael L. LeFevre, MD, MSPH, explains the role and processes of the U.S. Preventive... Read more

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The Importance of Measuring and Monitoring Inflammation in the Cardiovascular Patient

Dr. Levenson helps attendees understand the potential factors causing inflammation, reviews the critical risk factors that can lead to inflammation and discusses the biomarkers and... Read more

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Personalized Medicine in CV Disease AF/CHD Risk Scores

Gerard Abate, MD, Quest Diagnostics medical director discusses the impact of personalized medicine on cardiovascular diagnostics. Read more

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A step toward simplicity for a complex analyte.

Authors: Bystrom CE.Nassar A, Cohen C, Zhou W, Lynch KA, Barker EA, Vanderbilt BL, Thompson J, Heyman ER, Olson A, Lange H, Siddiqui MT.

Clin Chem. 2011;57:1091-1092.


'Criteria' aPL tests: report of a task force and preconference workshop at the 13th International Congress on Antiphospholipid Antibodies, Galveston, Texas, April 2010.

Authors: Pierangeli SS, de Groot PG, Dlott J, Favaloro E, Harris EN, Lakos G, Ortel T, Meroni PL, Otomo K, Pengo V, Tincani A, Wong R, Roubey R.Nassar A, Cohen C, Zhou W, Lynch KA, Barker EA, Vanderbilt BL, Thompson J, Heyman ER, Olson A, Lange H, Siddiqui MT.

Lupus. 2011;20:182-190.


A brief review of recent Charcot-Marie-Tooth research and priorities.

Quest Diagnostics Authors: Moore, A

Authors: Ekins S, Litterman NK, Arnold RJ, Burgess RW, Freundlich JS, Gray SJ, Langley B, Willis DE, Notterpek L, Pleasure D, Sereda MWNassar A, Cohen C, Zhou W, Lynch KA, Barker EA, Vanderbilt BL, Thompson J, Heyman ER, Olson A, Lange H, Siddiqui MT.

F1000Res 2015;4:53


A multisite performance study comparing the reading of immunohistochemical slides on a computer monitor with conventional manual microscopy for estrogen and progesterone receptor analysis.

Quest Diagnostics Authors: Agersborg, S

Authors: Nassar A, Cohen C, Zhou W, Lynch KA, Barker EA, Vanderbilt BL, Thompson J, Heyman ER, Olson A, Lange H, Siddiqui MT.Nassar A, Cohen C, Zhou W, Lynch KA, Barker EA, Vanderbilt BL, Thompson J, Heyman ER, Olson A, Lange H, Siddiqui MT.

Am J Clin Pathol. 2011;135:461-467.


A new immunohistochemical ER/PR image analysis system: a multisite performance study.

Quest Diagnostics Authors: Agersborg, S

Authors: Nassar A, Cohen C, Zhou W, Lynch KA, Heyman ER, Olson A, Lange H, Siddiqui MT.Nassar A, Cohen C, Zhou W, Lynch KA, Barker EA, Vanderbilt BL, Thompson J, Heyman ER, Olson A, Lange H, Siddiqui MT.

Appl Immunohistochem Mol Morphol. 2011;19:195-202.


A patient with diffuse hair loss.

Quest Diagnostics Authors: Elston, D

Authors: Patel MNassar A, Cohen C, Zhou W, Lynch KA, Barker EA, Vanderbilt BL, Thompson J, Heyman ER, Olson A, Lange H, Siddiqui MT.

Indian Dermatol Online J 2015;6:46-48