A patient with end-stage kidney disease (ESKD) has developed anemia. What laboratory finding does the nurse understand to be significant in this stage of anemia?
a) Potassium level of 5.2 mEq/L
b) Calcium level of 9.4 mg/dL
c) Creatinine level of 6 mg/100 mL
d) Magnesium level of 2.5 mg/dL
Answer: Creatinine level of 6 mg/100 mL