• Secondary hyperparathyroidism,
  or SHPT, is a common but
  serious complication of chronic
  kidney disease.
• SHPT results in an overproduction
  of parathyroid hormone (PTH)
  in response to low active vitamin D
  levels or low calcium in the blood.
• SHPT can lead to parathyroid
  gland hyperplasia, which can
  become resistant to treatment
  and may require surgical removal.

Talk to your doctor to learn more
about how SHPT can affect your
parathyroid glands.