Quiz 07/20/2022 (1)

What is the most appropriate therapy for the infection depicted in the pathology slide below?

What sensitivity should the EEG be at to qualify for brain death criteria?

An EMG/NCS is performed for the evaluation of subacute left upper extremity weakness in an adult female. There are fibrillation potentials in the deltoid and biceps on EMG and decreased median and radial sensory amplitudes on NCS. Which portion of the brachial plexus was injured?

A 25-year-old female presents with anisocoria; her right eye is significantly more dilated when compared to the left eye in ambient light. The right pupil is also irregular in shape, does not respond to light, and is sluggish to constrict to near accommodation. When dilute pilocarpine (0.125%) is administered to the right pupil it constricts but the left eye doesn’t react at all.

Which of the following is the most likely cause of the patients’ symptoms?

A 39-year-old male presents to the clinic for hallucinations. His medical history is only remarkable for a chemical accident at his job resulting in severe corneal scarring bilaterally, for which he now requires a seeing-eye dog.

His hallucinations are usually of tall figures dressed in black with long fingers. He is not frightened by this because he knows they are not real. He denies other neurologic deficits, denies auditory hallucinations and describes his mood as “good”. The rest of his exam is normal.

You are familiar with the underlying syndrome the patient is experiencing. You inform the patient that in the rest of the population the most common cause of this syndrome is actually…

A 65-year-old male is brought in by his daughter due to progressive headache and memory difficulties. MRI of the brain was ordered and is shown below (Left: T2 FLAIR, Right: T1 with contrast). A biopsy of the lesion would most likely reveal which of the following?

A 68-year-old man with an unknown past medical history presents with language difficulties. His spontaneous speech is non-fluent. He has anomia and difficulty following complex tasks, but intact repetition. A solitary lesion in which of the following regions can present with these symptoms?

A previously healthy two-year-old girl is brought to the clinic by her parents due to a 1-month history of difficulty walking. Her parents state that she began walking at 11 months old, but over the past month she has been falling more often. On physical exam, the patient demonstrates a broad-based gait and truncal ataxia. A CT scan of the brain is ordered and shows an intraparenchymal hyperdense mass in the cerebellum. She undergoes resection of the mass and a pathologic examination of the specimen shows anaplastic small round blue cells. What is the most likely diagnosis?

The trochlear nucleus sends nerve fibers to which of the following muscles?

An 8-year-old girl is noted to have staring spells during class by her teacher. In the office, you are able to provoke an event by having her blow repeatedly into a pinwheel. What is the most likely underlying pathology of her disease?

Which of the following medications requires blood pressure and pulse monitoring for at least 6 hours after the first dose to assess for first-dose-related bradycardia?

A 46-year-old male with a 2-month history of progressive headache and behavioral changes presents to the ED after experiencing a first-time seizure. An MRI was performed and shown below. A brain biopsy confirmed the diagnosis when it found pseudopalisading necrosis and microvascular proliferation. Which of the following treatment(s) is the standard of care for this patient?

A 23-year-old female with a past medical history of depression presents with right arm paralysis that started after she found out her boyfriend died from a motor vehicle accident. Her physical exam shows no effort during muscle strength testing and positive withdrawal when a noxious stimulus is applied. The rest of the neurological examination, including reflexes, was normal. MRI of the brain and cervical spine were unremarkable. Which of the following is the most likely diagnosis?

A 25-year-old male with a history of sensorineural hearing loss and tinnitus has an MRI brain ordered as part of his workup (see below). A genetic syndrome is suspected. Which of the following is also likely to be found on imaging?

A 36-year-old female with bilateral lower extremity weakness, hyperreflexia, and difficulty emptying her bladder gets an urgent MRI with contrast of her thoracic spine (T2 sagittal (left) and axial (right)). Which of the following is the most likely diagnosis?