AEMCA Practice Exam

Which symptom is NOT typically associated with myasthenia gravis?

1. Weakness in skeletal muscles

2. Tremors during movement

3. Fatigue that worsens with activity

4. Difficulty with eye movement

The correct answer is: Tremors during movement

Myasthenia gravis is an autoimmune disorder characterized by weakness and rapid fatigue of the voluntary muscles. It primarily affects the communication between nerves and muscles due to the body's immune system producing antibodies that block or destroy nicotinic acetylcholine receptors at the neuromuscular junction. This leads to a set of symptoms that are closely associated with the condition. Weakness in skeletal muscles is a hallmark symptom of myasthenia gravis, affecting facial muscles, eyelids, and limbs. Fatigue that worsens with activity is also a key characteristic, as patients often experience increased weakness with prolonged use of a muscle. Difficulty with eye movement, such as ptosis (drooping of one or both eyelids) and diplopia (double vision), is very common among individuals with this condition. In contrast, the presence of tremors during movement is not a typical symptom associated with myasthenia gravis. Tremors are more commonly linked to other neurological conditions, such as Parkinson's disease or essential tremor, rather than the muscle weakness and fatigue that define myasthenia gravis. Therefore, identifying tremors as not typically associated with myasthenia gravis highlights a distinction between the symptoms of this autoimmune disorder and other movement