[Expert Solution]: Myasthenia gravis is an autoimmune…

Myasthenia gravis is an autoimmune disorder where antibodies attack acetylcholine receptors at the neuromuscular junction, preventing muscle contraction signals from properly transmitting. Sarah’s symptoms—ptosis, dysarthria, difficulty swallowing, and increased weakness in the evening—directly reflect this pathophysiology, as these symptoms worsen with repeated muscle use throughout the day. Sarah’s current exacerbation is likely caused by her missed pyridostigmine doses. Pyridostigmine inhibits acetylcholinesterase, allowing acetylcholine to remain available longer at the neuromuscular junction, which helps compensate for the reduced receptor function. Priority nursing assessments include: Respiratory status (vital capacity, negative inspiratory force) Swallowing ability and risk of aspiration Muscle strength, especially in respiratory muscles Neurological status, including cranial nerve function Potential complications include respiratory failure (myasthenic crisis), aspiration pneumonia, and cholinergic crisis from medication overdose. For medication adherence teaching, the nurse should: Emphasize the critical importance of consistent medication timing Help Sarah develop a medication schedule and reminder system Explain the relationship between missed doses and symptom exacerbation Suggest keeping emergency medication supplies in multiple locations A myasthenic crisis results from inadequate treatment (too little medication) causing severe muscle weakness and potential respiratory failure. A cholinergic crisis occurs from excessive medication causing increased secretions, bradycardia, and muscle weakness that paradoxically resembles myasthenic crisis. To assess respiratory status, the nurse should monitor: Respiratory rate, depth, and pattern Oxygen saturation Vital capacity measurements Ability to count to 20 in one breath Use of accessory muscles Patient’s subjective feeling of breathlessness The interprofessional team for Sarah’s care may include a neurologist, pulmonologist, pharmacist, respiratory therapist, speech therapist (for swallowing assessment), dietitian, and case manager. can I get references for this