Review Question - QID 216681

A 31-year-old woman presents to her primary care physician with a 3-month history of fatigue. She says that she used to have a very active lifestyle, but now can barely make it through the work day without feeling exhausted. She also says that she has been experiencing significant pain in her hands and her knees. Her medical history consists of asthma for which she uses an albuterol inhaler as needed. She recently moved into an old house and started a ketogenic diet for weight loss. Her temperature is 98.6°F (37.0°C), blood pressure is 115/77 mmHg, pulse is 90/min, and respirations are 14/min. On physical exam, she has conjunctival pallor and edema of her metacarpophalangeal joints. No skin rashes are observed. Serum laboratory tests are performed with the following results:

Hemoglobin: 9.3 g/dL
Mean corpuscular volume: 86 µm^3
Iron: 37 µg/dL
Ferritin: 201 ng/mL

Which of the following is the most appropriate treatment for this patient?