A 45-year-old man with a history of type 2 diabetes mellitus and hypertension presents to his primary care physician's office with complaints of persistent fatigue and joint pain. He mentions that his skin seems hyperpigmented than usual, even though he hasn't been spending much time in the sun. On physical examination, and there is hepatomegaly on examination. His physician orders laboratory tests to investigate the underlying cause. What would you expect in the lab findings?