Electric-shock facial pains seconds in duration in the V2/V3 distribution, triggered by light touch; exam otherwise normal. Most common underlying mechanism:

A 29-year-old nonsmoker presents with basilar panacinar emphysema on outpatient CT and mild transaminitis. What is the best next step in primary care?

You counsel a patient with symptomatic SIADH (Na⁺ 110 mEq/L). Which safety warning is correct regarding correction?

Which statement best describes the normal role of IgD?

Untreated obsessive-compulsive disorder increases risk for:

A 58-year-old reports progressive penile curvature with painful erections after minor trauma months ago. Most consistent pathophysiology?

Why are cardiac troponins the preferred biomarkers in suspected MI?

During a psychiatric interview, a patient suddenly stops mid-sentence and cannot recall what they were saying. This is most consistent with:

A 62-year-old with hip pain has a vertebral compression fracture on imaging. Which statement is true about osteoporotic vertebral compression fractures?

Which neurobiologic abnormality is most implicated in the positive symptoms (hallucinations, delusions) of schizophrenia?