Author: Anonymous

A 32-year-old male presents with infertility. He has a history of mumps orchitis at age 15. Which diagnostic test should be ordered first?

A 63-year-old woman presents with brief episodes of severe electric shock–like facial pain triggered by brushing her teeth. Each episode lasts seconds. Neurologic exam is otherwise normal. Which is the most appropriate first-line treatment?

A 28-year-old woman presents with recurrent unilateral headaches lasting 12–24 hours associated with nausea, photophobia, and visual disturbances described as “flashing lights.” Neurologic examination is normal. Which of the following best explains the underlying pathophysiology of this patient’s headache?

A 29-year-old woman reports episodes of unilateral vision loss and pain with eye movement followed months later by numbness in her arms. Symptoms partially resolved between episodes. Which diagnosis is most likely?

A 35-year-old man presents with painless scrotal swelling that transilluminates. The testicle is difficult to palpate. What is the most likely diagnosis?

A 74-year-old man has progressive memory decline over 2 years. Recently he developed visual hallucinations and fluctuating cognition. His wife reports episodes where he is alert and coherent followed by confusion. On exam, mild parkinsonian features are present. Which diagnosis is most likely?

Bicarbonate ions in the blood can absorb hydrogen ions, keeping pH balanced.  Bicarbonate is acting as a ________ in blood.

Phospholipids have a__________________________________- that make up a bilayer cell membrane.

The monomer that makes up a protein is are  _________________.

Which pH has the highest concentration of H+ ions?