Quiz 06/21/2022 (3)

A previously healthy 59-year-old male presents with an acute onset of slurred speech and left-sided weakness. The symptoms started 7 hours ago. On arrival, his NIHSS is 8 and his EKG shows a normal sinus rhythm. Vessel imaging is done and shows a right middle cerebral artery occlusion, so the patient undergoes a successful mechanical thrombectomy and has minimal residual neurological deficits. A post-thrombectomy CT head is performed and negative for blood. Which of the following options is the most appropriate next step in medical management?

Which of the following transverses through the structure (blue arrow) shown below?

A 62-year-old woman with a history of rheumatoid arthritis presents with insidious onset of painless proximal muscle weakness and atrophy. A serum CK is obtained and is normal. TSH is also normal. Her medication list includes lisinopril, aspirin, and prednisone. EMG shows short-duration motor unit potentials in the deltoids and quadriceps bilaterally. A muscle biopsy is performed. Which of the following will most likely be appreciated?

Which of the following has the longest half-life?

A 45-year-old female presents as a trauma for an unhelmeted motorcycle accident. She has sustained significant blunt head trauma, and CTH shows hydrocephalus caused by edematous mass effect compressing the fourth ventricle. Which of the following shows the correct directional flow of CSF in a normal individual?