A nurse is evaluating a 69-year-old female with a history of…

A nurse is evaluating a 69-year-old female with a history of stable angina. During a clinic visit, she states, “Lately, I’ve been getting chest discomfort after doing things that didn’t used to bother me—like folding laundry or walking to the mailbox. The discomfort takes longer to go away now, and once it happened while I was just sitting reading.” Which of the following best reflects the nurse’s interpretation of these findings?