Quiz 07/13/2022

A 28-year-old patient who you just diagnosed with non-epileptic spells admits to insomnia, low energy, increased appetite, loss of interest in activities he used to enjoy, and difficulty concentrating. Additionally, he endorses periods of pressured speech, racing thoughts, easy distractibility, and delusions of grandeur. Despite these symptoms, he continues to fulfill the duties of his high-paying job. In addition to non-epileptic spells, he also carries a diagnosis of which of the following?

Which of the following is the primary source of norepinephrine in the brain?

A previously healthy 14-year-old female presents to the emergency room after experiencing a trip and fall where she hit her head. She returns to baseline, but out of caution a CT head and subsequent MRI brain are performed in the ED. What is a potential complication caused by this lesion seen in this MRI?

A 45-year-old female presents to the emergency room after experiencing a first-time seizure. On examination, she has some mild RUE weakness and anomia. MRI w/o contrast was performed and shown below. Which of the following is the likely cause of her lesion?

A 57-year-old navy veteran with a history of PTSD presents with a 2-year history of progressive, asymmetric weakness. The patient states that symptoms started in his left arm. Six months later he started to have falls due to tripping over his right foot. His neurological examination shows weakness of the intrinsic hand muscles of the left arm, ⅖ strength on dorsiflexion of the right ankle, and no sensory disturbances. Reflexes were mute in the left upper extremity and there were several beats of clonus at the right ankle. Fasciculations were present in the tongue, right gastrocnemius, and left tibialis anterior. An EMG is recommended for diagnosis. Which of the following EMG findings are most likely seen in this patient?