The American Academy of Neurology (AAN) recommendations include measuring cobalamin (vitamin B12) and TSH levels of patients with suspected Alzheimer's disease to rule out other etiology. Any additional laboratory studies are ordered at the discretion of the physician, based on the individual needs of the patient.
Learn more about recommended laboratory studies in the workup of Alzheimer's disease.
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Cite this: Jasvinder P. Chawla. Fast Five Quiz: Alzheimer's Disease Differential Diagnosis and Workup - Medscape - Feb 22, 2022.