A​ 34-year-old woman complains of a sudden onset of difficul…

A​ 34-year-old woman complains of a sudden onset of difficulty breathing accompanied by sharp​ pain, rated 6 on a scale of 1 to​ 10, on the right side of her chest. Which of the​ following, if present in the​ patient’s history, should increase your suspicion for a pulmonary​ embolism?