1.   If hypercalcemia develops in mild renal failure, one must search for causes of hypercalcemia other than renal disease.

2.   In most patients the hypocalcemia is the result of renal disease or vitamin D deficiency.

3.   It is also seen in some cases of renal disease especially where tubular necrosis or pyelonephritis exists.

4.   Renal disease and a variety of other diseases have not been shown to increase serum ferritin levels.

5.   The hypocalcemia is associated with hyperphosphatemia in the absence of bone or renal disease.

6.   The hypocalcemia resulting from renal disease is more complex.

7.   Detailed pathological studies to detect subclinical renal disease have not been undertaken.

8.   The differential diagnosis of ARF, end-stage renal disease, and acute renal deterioration on a background of chronic renal disease can be difficult.

9.   Only people with end-stage renal disease would be restricted to policies A,B,C and F.