A 67 year-old female came to your office and reported fatigue, weakness, dizziness, chest pain, palpitations, and shortness of breath with exertion. In the physical examination, you found a frail woman with pallor, jaundice, tachycardia, tachypnea, and orthostatic hypotension. She was diagnosed with the anemia of chronic disease based on laboratory tests. Which of the following lab findings are most indicative of anemia of chronic disease?
