A 26-year-old female presents with fatigue, numbness and tingling in her bilateral upper extremities and feeling like she has difficulty maintaining her balance when walking. Upon further questions, she reports that she scheduled an appointment with optometry for an exam because of blurry vision. Which of the following should the primary care nurse practitioner consider for evaluating the patient’s symptoms? MRI of the brain with gadolinium Imaging of the lumbar spine Lumbar puncture Electromyogram (EMG)