Lab Minute: Vitamin B12

In the fifth episode of this series, Dr. Paul Crane and Dr. Prashanth Ramachandran discuss dexamethasone and listeria meningitis. 

In the fourth episode of this series, Dr. Paul Crane and Dr. Prashanth Ramachandran discuss the use of dexamethasone in the treatment of pneumococcal meningitis.

In the first installment of this series, Dr. Aaron Zelikovich and Dr. Bhaskar Roy discuss how emerging treatments for myasthenia gravis compare to one another.  Show citation:  McLaren NP, Rosati M, Zhong W, et al. Comparison of the Efficacy and Safety of Myasthenia Gravis Treatments: A Bayesian Network Meta-Analysis. Neurology. 2026;107(3):e218351. doi:10.1212/WNL.0000000000218351  

Dr. Jason Crowell and Ka-Ho Wong discuss national trends in Medicare reimbursement for inpatient neurologic care.  Show citation:  Wong KH, Castillo M, King J, et al. National Trends in Medicare Charges and Reimbursement for Inpatient Neurologic Care, 2013-2023. Neurology. 2026;107(6):e218460. doi:10.1212/WNL.0000000000218460 

In the third episode of this series, Dr. Paul Crane and Dr. Prashanth Ramachandran discuss HSV encephalitis and dexamethasone. 

In part two of this series, Dr. Paul Crane and Dr. Prashanth Ramachandran discuss pegivirus-associated encephalomyelitis. 

In part one of this series, Dr. Paul Crane and Dr. Prashanth Ramachandran discuss acute necrotizing encephalopathy.

In part one of this series, Drs. Greg Cooper, Trey Bateman, and Gregg Day discussed key takeaways from the 2026 Alzheimer's Association International Conference, focusing on blood-based biomarkers, anti-amyloid therapies, and other important highlights.      

Dr. Justin Abbatemarco recaps a presentation on Hashimoto encephalopathy from the AAN Autoimmune Neurology Conference.   Show citation:    Valencia-Sanchez C, Pittock SJ, Mead-Harvey C, et al. Brain dysfunction and thyroid antibodies: autoimmune diagnosis and misdiagnosis. Brain Commun. 2021;3(2):fcaa233. Published 2021 Jan 5. doi:10.1093/braincomms/fcaa233    Brain, Jellinek E, Ball K HASHIMOTO'S DISEASE AND ENCEPHALOPATHY The Lancet, 288, 512-514    Mattozzi S, Sabater L, Escudero D, et al. Hashimoto encephalopathy in the 21st century. Neurology. 2020;94(2):e217-e224. doi:10.1212/WNL.0000000000008785

In this lab minute, Dr. Stacey Clardy reviews the role of vitamin B12 testing in neurologic practice.