@ruthlovestoteach: Part 2: Myasthenia Gravis The exact cause of autoimmune attack of acetylcholine receptors is unknown but some situations can trigger the attack. Risk factors include auto-immune hyperthyroidism, rheumatoid arthritis, Lupus, infections and some medications. #myastheniagravis #acetylcholine #receptors #muscleweakness #pathophysiology #causes #riskfactors #nursingstudent #nursingschool #prenursing #letslearn #nursingeducation