SIOUX FALLS, S.D. — “Can you lift your arms?” physician Luke Van Oeveren asked.
An elderly woman stared blankly at him from the back of an ambulance, where she sat strapped onto a stretcher. After a moment, she complied, but when Van Oeveren added another instruction to the cognition test, she became confused.
“Close your eyes and lift your arms up,” he said.
