Q. You are working in the internal medicine clinic. A 72 year-old woman presents with balance issues. She reports that she is having trouble when she walks down the driveway to the mailbox and she has to bring a cane or another support device to prevent falling. When it is icy or wet outside, she often asks her neighbor to bring in the mail for her. She is worried that she has had a stroke. You want to examine her cerebellar system. Which of the following will help you get an assessment of her cerebellar function?