0 of 15 Questions completed
You have already completed the quiz before. Hence you can not start it again.
Quiz is loading…
You must sign in or sign up to start the quiz.
You must first complete the following:
0 of 15 Questions answered correctly
Time has elapsed
You have reached 0 of 0 point(s), (0)
Earned Point(s): 0 of 0, (0)
0 Essay(s) Pending (Possible Point(s): 0)
A 58-year-old male with a prolonged history of myasthenia gravis was recently discharged 4 months ago from the hospital with his second myasthenic crisis requiring transient intubation. Since that hospitalization, he was on prednisone, tapered down to 40 mg a day, cyclosporine and pyridostigmine. He comes to the ED today after having a generalized tonic-clonic seizure. On arrival to the ED, the patient is post-ictal and has vision deficits on exam. MRI of the brain shows T2 hyperintensities on the posterior cerebral hemispheres. Which of the following is the likely etiology of this clinical presentation?
Which of the following medications is associated with sudden irresistible attacks of sleep?
A 65-year-old man presents to the emergency room with progressive weakness over the course of several months. Examination shows pure motor weakness with no sensory involvement, decreased reflexes, and diffuse fasciculations. An EMG shows a conduction block of motor neurons outside of compression sites and normal sensory conduction velocities. Which of the following of most appropriate for treatment?
A patient recently diagnosed with multiple sclerosis was started on an oral disease-modifying therapy (DMT) that works on nuclear factor erythroid-derived 2-related factor (Nrf2)-dependent and independent pathways. One week later they call you complaining of flushing of the skin. What is the most appropriate next step in management?
What clinical diagnosis does this EEG tracing suggest?
Which of the following findings is depicted in the catheter angiogram shown?
What is the typical brainstem auditory evoked response (BAER) finding with cortical hearing loss?
A 14-year-old girl with no significant past medical history is brought to the clinic with a 1-week history of involuntary movements of the left side of her body. Her mother reports that 1 month ago, she experienced a week of fever, malaise, and fatigue, but they did not seek medical treatment at the time. On physical exam, the patient exhibits involuntary, irregular movements of her neck, left arm, and left leg, and generalized hypotonia. What is the most likely diagnosis?
A 77-year-old male presents with a 1-year history of worsening bradykinesia, recurrent falls, and a shuffling gait. Past medical history is significant for REM-sleep behavior disorder and diet-controlled hypertension. Neurologic examination reveals a tremor at rest that improves with movement, along with bilateral upper-limb spasticity. Impaired dopaminergic signaling is most likely to be found in which of the following locations?
A 57-year-old male with recently diagnosed small cell lung cancer (SCLC) is presenting to the electromyography lab with a one-month history of muscle cramps and muscle pain. Percussive myotonia is appreciated on examination. Electromyography showed myokymic discharges. Autoantibodies against which of the following channels are likely present in this case?
A 38-year-old man visiting from India presents to your clinic as a new patient for months of weakness in bilateral ankles to dorsiflexion and plantar flexion. On exam, he has diminished reflexes. He had an EMG done recently, showing axonal neuropathy in the lower extremities. He does not have his medication list with him, but he states he has taken a medication prescribed in India for “a cough” for several months. Which of the following labs would provide the highest yield?
A 69-year-old female is brought to the emergency room by her daughter for excessive stumbling, often tripping on things on the floor. The daughter also says her mother has been behaving oddly, complaining about seeing darkness in a fully lit room, and the inability to recognize her family members. Bilateral pupillary light reflexes are normal. If symptoms are secondary to an ischemic injury, an MRI would show a lesion in which of the following regions?
Which of the following botulinum serotypes cleaves synaptosomal-associated protein (SNAP)-25.
A 72-year-old woman is brought to the clinic by her family with concerns about living at home alone. Her daughter states that the patient’s “memory is not what it used to be” and that she will often think that there are little children in her house when no one is there. On exam, you appreciate a bilateral upper extremity resting tremor. A functional PET scan will most likely show which of the following?
A 17-year-old female with a past medical history of anxiety, depression, and irritable bowel syndrome presents to the emergency room after a transient clinical episode. Her mother states that they were eating dinner when her daughter dropped to the floor and began having generalized shaking movements of her arms and her legs. She was unresponsive during the event and her eyes were closed. The event lasted approximately 30 seconds and there was no post-ictal confusion. In the emergency room, the patient has another event, where pelvic thrusting and asynchronous movements were appreciated for 2 minutes before resolution. The patient stated that she remembered having no control of her body during the event in question. Based on the most likely diagnosis, which of the following is the most appropriate treatment?