Final answer:
The adjective 'fluctuating' is used to describe the variable intensity and occurrence of early symptoms in Myasthenia Gravis.
Step-by-step explanation:
The unique adjective used to describe the early signs of Myasthenia Gravis (MG) is fluctuating. This term indicates that the symptoms can vary in intensity and can come and go. MG is characterized by weakness and rapid fatigue of any of the muscles under your voluntary control. It is caused by a breakdown in the normal communication between nerves and muscles. There is no single test for MG, but a diagnosis can be confirmed with a variety of tests that may include a blood test, an edrophonium test, and electromyography (EMG). Treatment options are available and may include medications, surgery, and other therapies aimed at improving muscle function and reducing symptoms.