Review Question - QID 214700

A 37-year-old woman presents to the clinic with fatigue. She has been feeling short of breath more frequently than usual and is no longer able to climb the 2 flights of stairs to her apartment without resting. She denies lightheadedness, chest pain, and palpitations. Her last menstrual period was 2 weeks ago. Her menstrual periods typically last for 5 days with moderate to heavy bleeding. She has a history of eczema as a child and gastroesophageal reflux disease (GERD). She is currently taking omeprazole. Her father died of a myocardial infarction in his 50s. Her temperature is 99.4°F (37.4°C), blood pressure is 125/73 mmHg, pulse is 75/min, and respirations are 18/min. On exam, her heart rate and rhythm are regular with a loud, split S2. Her lungs are clear to auscultation bilaterally and her capillary refill is < 2 seconds. Her face is shown in Figure A. Which of the following would most likely be found in this patient?