High creatine levels in bloodwork are not typically considered a diagnostic marker for myasthenia gravis. MG is identified through specific antibody blood tests, not creatine levels.
The key blood tests used to diagnose MG look for:
- AChR antibodies (acetylcholine receptor antibodies) — present in most people with MG
- MuSK Show Full Answer
High creatine levels in bloodwork are not typically considered a diagnostic marker for myasthenia gravis. MG is identified through specific antibody blood tests, not creatine levels.
The key blood tests used to diagnose MG look for:
- AChR antibodies (acetylcholine receptor antibodies) — present in most people with MG
- MuSK antibodies — found in 30–40% of people who test negative for AChR antibodies
- LRP4 antibodies — sometimes tested when both AChR and MuSK come back negative It's worth noting that creatine supplements may actually be something to be cautious about with MG. Since MG already affects how muscles function, creatine could potentially disrupt muscle metabolism and lead to more fatigue rather than strength improvement. Research in this area is still very limited.
It's always best to share any unusual bloodwork results with your neurologist, as they can best interpret what those numbers mean in the context of your specific situation.
October 6
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