Q. An 18-year-old woman presents to your primary care clinic with symptoms of fatigue, weakness, and an unusual craving for ice for the past few months. She reports heavy menstrual periods and a vegetarian diet. Her temperature is 98.6°F (37°C), pulse is 86 beats per minute, blood pressure is 130/70 mmHg and respiratory rate is 14 per minute. On examination, her conjunctiva appears pale and she has spoon-shaped nails with concave depressions in the nail beds. The rest of the examination is normal. Which of the following sets of lab results is most likely to be observed during her blood testing?