Which lab test results are characteristic of spinal muscular atrophy (SMA)?

Updated: Jan 03, 2017
  • Author: ; Chief Editor: Stephen L Nelson, Jr, MD, PhD, FAACPDM, FAAN, FAAP  more...
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Answer

The creatine kinase (CK) level is typically normal in SMA type I and normal or slightly elevated in the other types.

CSF findings are normal.


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