Other labs include a serum iron level of 76 mcg/dL, total iron binding capacity (TIBC) of 217 mcg/dL, iron saturation of 35 %, total serum ferritin level of 207 ng/mL, a reticulocyte production index of 0.7, a parathyroid hormone level of 220 pg/mL, and a hemoglobin A1C of 7.3 %...
ulcerative colitis, or Crohn's disease can make it harder for your intestines to absorb iron from the foods you digest. Surgery such as gastric bypass, which removes part of your intestines, and medicines used to lower stomach acid can also affect ...