Accepted at 12:46 a.m. Nov, 01, 2023 by dollajas
Bulk Suggestion Bulk ID: nscottmed/01.14.23-11:13PM
Author: nscottmed
Related Note: 1478898380831 1
Rationale for change

Related to Question Id: 107590

Text
Vitamin B12 deficiency is characterized by {{c1::increased}} serum methylmalonic acid
Extra
Important distinguishing feature from folate deficiency

Deficiency Symptoms
Vitamin B9
(Folate)		Vitamin B12
(Cobalamin)
PMNsHypersegmentedHypersegmented
Methylmalonic AcidNormal↑
Homocysteine↑↑
AnemiaMacrocyticMacrocytic
Neurological SymptomsNormalSubacute combined degeneration & psychiatric symptoms
Lecture Notes
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Pathoma
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Boards and Beyond
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First Aid


Sketchy


Watch Organic Acidemias


Watch Vitamin B12 (Cobalamin)
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Watch Macrocytic Anemia DDx
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Picmonic
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Pixorize

Review Vitamin B9 and B12 Deficiencies
Physeo




Bootcamp
Watch associated Bootcamp video - Macrocytic Anemia: Cobalamin (Vitamin B12) Deficiency

Watch associated Bootcamp video - Cystinuria and Organic Acidemias: Organic Acidemias

Watch associated Bootcamp video - Vitamins: Vitamin B12 (Cobalamin)

Watch associated Bootcamp video - Infectious Neuropathology: Infectious Spinal Cord and Neuromuscular Junction

Watch associated Bootcamp video - Physiology: Vitamins
OME

Additional Resources

Other:


elevated methylmalonic acid level is more sensitive in detecting B12 deficiency than serum vitamin levels alone
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