A 35-year-old woman presents with fatigable ptosis and diplopia. Vital signs: BP 118/76, HR 88, RR 16, Temp 37°C, SpO2 98%. She reports symptoms worsen with activity and improve with rest. Antibodies to acetylcholine receptors are positive. Chest CT shows no thymoma. She denies recent infections or medication use. She is started on a medication that improves her symptoms by increasing acetylcholine concentration at the neuromuscular junction. Which drug was most likely prescribed?
- A)Dantrolene
- B)PyridostigmineGABARITO
- C)Baclofen
- D)Riluzole
- E)Atropine
Explicação
Pyridostigmine is a reversible acetylcholinesterase inhibitor used for symptomatic treatment of myasthenia gravis. By inhibiting acetylcholine breakdown, it increases activation of the remaining functional postsynaptic receptors. Ver explicação completa e trilha adaptativa →