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A 71-year-old male with a history of mild ankle weakness and balance issues for the last 6 years is referred to the lab for a nerve conduction study (NCS). While performing the testing the patient states that a few of his siblings, as well as his father, had similar issues. Examination showed high arches and hammertoes. Based on the clinical history and NCS, what is the most likely diagnosis?
Which of the following is the mechanism of action for aducanumab?
Estrogen-containing oral contraceptive pills are known to reduce serum levels of which of the following medications?
What is the state of the patient in the EEG shown below?
A 61-year-old male with hypertension, hyperlipidemia, diabetes, and coronary artery disease presents after a sudden onset of headache and difficulty speaking, with left arm and leg weakness. Their blood pressure is 212/105 mmHg, and their blood glucose is 275 mg/dL. You notice aspirin on his medication list. A CTH is performed and is notable for a 25 cc hemorrhage in the right basal ganglia. Which of the following is correct?
The axial T2 brain MRI image shown below is from a 20-year-old man who presented to the hospital after experiencing a motor vehicle accident. Which of the following associated findings would be expected given the abnormality shown?
A 51-year-old woman with a past medical history of migraines and irritable bowel syndrome comes to the physician because of abnormal shaking of both hands for the past two months. The shaking improves after two glasses of wine. Examination shows symmetric hand tremors that worsen when the patient reaches for objects in front of her. What is the mechanism of action of the most appropriate first-line treatment?
A 67-year-old male presents with the inability to reach for objects in his visual field. He states that he can see the object, but on the clinical exam he can not grasp it accurately. He also is unable to see multiple objects at once. He has a past medical history of atrial fibrillation and an ischemic injury is suspected. A brain MRI would show which of the following areas of the brain is/are affected?
This muscle biopsy is most consistent with which myopathic disease?
Which of the following CSF biomarker findings would be expected in someone with Alzheimer’s disease when compared to healthy controls?
Which of the following anatomic structures is responsible for the perception of superficial light touch?
Which of the following transverses through the structure (blue arrow) shown below?
A 68-year-old man with left leg weakness and pain has an MRI performed to evaluate for a possible etiology. Her imaging is provided below. Based on the location of the lesion, which of the following muscles is most likely weak on examination?
Which of the following dermatomes lies closest to the T2 dermatome, relative to the topographical position on the skin?
A 27-year-old previously healthy female is seen at the clinic for 5 days of leg weakness. The weakness has progressively been getting worse and now she has difficulty rising from a chair. Her past medical history is unremarkable except for a few days of an upset stomach and diarrhea that occurred two weeks ago. On physical exam, strength is diminished in the bilateral lower extremities. Deep tendon reflexes are 1+ in the lower extremities. A lumbar puncture is ordered. Testing of the cerebral spinal fluid (CSF) in this patient is most likely to show which of the following?