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A 21-year-old patient presents with progressive weakness in the legs that began 5 days prior and is now ascending to the arms. The patient reports a recent gastrointestinal illness. You suspect Guillain-Barre syndrome. Which additional finding would be most likely?

You notice a patient’s chart notes that they are experiencing alogia and anhedonia. What would you expect to observe in this patient?

A 40-year-old man with chronic alcohol use presents with epigastric pain radiating to the back and elevated lipase levels. What is the most likely diagnosis?

Which statement is correct regarding amyotrophic lateral sclerosis (ALS) as compared to Huntington and Parkinson disease?

Which brain alteration is most commonly associated with anxiety disorders?

A patient with a recent fracture has persistent pain and no healing after 9 months. What is the most likely complication based on the pathophysiologic features outlined in this case?

A postmenopausal woman has a T-score of -2.7 and vertebral compression fractures. Which mechanism best explains the pathophysiologic changes in bone density?

A 7-month-old infant presents with clusters of jackknife seizures occurring multiple times per day. EEG confirms infantile spasms. Which epilepsy syndrome is most consistent with this presentation?

Which feature best differentiates generalized anxiety disorder (GAD) from posttraumatic stress disorder (PTSD)?

A 68-year-old patient presents with a shuffling gait, difficulty initiating movement, resting tremor, and cogwheel rigidity. What would you suspect is the pathophysiology behind these clinical signs?