Final answer:
Kidney function should be checked for someone taking Calcium EDTA, as it plays a critical role in maintaining calcium homeostasis and in the excretion of calcium and other ions.
The correct option is C. Kidney function
Step-by-step explanation:
For someone taking Calcium EDTA, it is important to check kidney function. EDTA is used to bind calcium and other heavy metals and minerals in the body, making them inactive and aiding in their excretion. Because calcium homeostasis is critical for a number of body functions, including blood coagulation, muscle contraction, nerve functioning, and bone strength, it is important to monitor the kidneys which help maintain this balance. The kidneys also work to excrete certain ions, including calcium, hence the importance of monitoring kidney function when someone is taking Calcium EDTA.