Exit 1 Minute Challenge #5 Learning Module Source: Endocrine ConceptsIf not already receiving via email, please sign up for the list, or pass to others who might be interested Question Title * 1. Which fraction of total calcium is biologically active, and therefore tightly regulated? Protein-bound Ionized Complexed to anions Complexed to cations Question Title * 2. The reduced plasma T3 state occurring in fasting and nonthyroidal illness is associated with a __________clinical status. hypothyroid euthyroid hyperthyroid Submit and Get Feedback