Which of the following is not a treatment option for myasthenia gravis?

• A. Cholinesterase medications
• B. Immunosuppressants
• C. Thymectomy
• D. Plasmapheresis

Answer: (A)

Cholinesterase inhibitors are a mainstay for MG because they boost the amount of acetylcholine at the neuromuscular junction by blocking its breakdown. This enhances transmission at the end plate and improves muscle strength and endurance, especially for symptoms like ptosis and diplopia early in the disease. They’re used for symptom relief, not disease modification, but they are definitely a treatment option.

Immunosuppressants, such as corticosteroids and steroid-sparing agents, help dampen the autoimmune attack that reduces receptor function and neuromuscular transmission. Thymectomy can be beneficial by reducing the source of autoimmunity, particularly in patients with thymoma or certain MG phenotypes. Plasmapheresis rapidly removes circulating autoantibodies and is used in MG crises or around surgery to stabilize patients.

All of these are established treatments for MG, so the statement that cholinesterase medications are not a treatment option is not consistent with current practice. If a test item presents this as the only not-treatment option, it reflects a flaw in the question wording, since every listed choice has a valid therapeutic role.