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A 27-year-old marathon runner collapses near the finish line on a hot day. On arrival to the emergency department, his core temperature is 41.2°C (106°F). He is confused, tachycardic, and not sweating. Which of the following best explains the pathophysiology of his condition?

A 56-year-old man with poorly controlled type 2 diabetes reports burning and shock-like pain in his feet. He also describes pain when bed sheets touch his skin. Which of the following mechanisms best explains this patient’s neuropathic pain?

A 30-year-old woman reports excessive daytime sleepiness, sudden muscle weakness triggered by laughter, and episodes of being unable to move while falling asleep. Which disorder is most consistent with this triad?

A 45-year-old female presents with a progressively worsening severe headache, confusion, and papilledema. Imaging studies reveal a large intracranial mass accompanied by significant cerebral edema. Based on the Monro-Kellie Doctrine, which of the following best describes the pathophysiological changes occurring in her brain?

Which neurotransmitter is most closely associated with the parasympathetic nervous system?

Which of the following is a long-term complication often experienced by survivors of childhood cancer treatment? 

A 28-year-old man with a spinal cord injury at T4 presents with sudden severe headache, hypertension, bradycardia, and sweating above the level of the lesion. Which of the following best explains the pathophysiology of this condition?

Calculate the pH of a solution with an H+ concentration of 2.46 × 10−4 M. Report the pH with the correct number of significant figures. pH = –log[H+]

A technician determines the concentration of calcium in milk using two instrumental methods. If Fcalculated 

Extra Credit: If you could have lunch with anyone (can be alive or not), who would it be and why?