Chemistry Pertaining to Hydrofluoric Acid?

I have a chemistry problem. A man has just burned with hydrofluoric acid. The burns cover 40% of his body. The fluoride has reacted with calcium and magnesium to form insoluble masses in the blood. Without calcium, his lungs and his heart have stopped since calcium is the electrolyte that caries the electrical charge. My theory is to pump this man with Iron II in the blood stream to carry the electrical pulse. Iron II has similar properties to calcium right? And also I will put him on dialysis to filter out the Calcium fluoride and magnesium fluoride. Could this work or is it impossible? Don't worry, I am not a doctor, this is just a question on a high school chemistry assignment and this situation isn't real.