A 60-year-old man presents with progressive muscle weakness, fasciculations, and difficulty swallowing. Sensory function remains intact. Which diagnosis is most consistent with these findings?

Which physical exam finding is most relevant when evaluating a man with erectile dysfunction?

A 35-year-old woman has migraines occurring 10 days per month. Sumatriptan effectively aborts the headaches but she is missing work frequently. Which is the most appropriate next step?  

A 63-year-old woman presents to the emergency department with mild left-sided weakness that resolves within one hour. MRI confirms a small ischemic infarct. She has no atrial fibrillation and no contraindications to antiplatelet therapy. Which management strategy is most appropriate for early secondary prevention?

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 52-year-old postmenopausal woman reports dyspareunia and decreased libido. Which etiology most likely contributes to her symptoms?

Which behavioral intervention is most effective as first-line treatment for stress urinary incontinence?

A 56-year-old woman presents with a new severe headache that started abruptly while gardening. She describes it as “the worst headache of my life.” She also reports neck stiffness and nausea. What is the most appropriate next step?

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?

In this chemical bond, both atoms exert equal pull on the shared electrons.