Medicine Which one of the following is the most sensitive test for the diagnosis of myasthenia gravis? A Elevated serum ACh-receptor binding antibodies B Repetitive nerve stimulation test C Positive edrophonium test D Measurement of jitter by single fibre electromyography 💡 Explanation Which one of the following is the most sensitive test for the diagnosis of myasthenia gravis? ✓ Correct Answer: C. Positive edrophonium test