#NeuromuscularQandA! Questions you always wanted to ask your friendly #neuromuscular doc. #neurology #medtwitter #MedEd #medstudent #neurologyresident Short answers only. Join me in discussing/learning/educating with #passion and #humor @WNGtweets @AANEMorg @CambridgeMedsoc
Q: What gives doc. Got a #myastheniagravis patient. The repetitive stimulations are positive but the AchR antibody ain’t. Ain’t MG an #autoimmune thing?
A: AChR Ab ain’t the only fish in the sea.Try Musk antibody -positive in 40% AChR Ab negative patients. If negative, the waiting game - 20% AChR Ab negative patients seroconvert in a year. Still negative? Ab are teeny tiny and sensitivity of lab testing determines what we see.
@threadreaderapp please unroll
