Should I be worried about high calcium levels? My dog hasn't eaten in 4 days.

Question: 

My boxer is 8 years old and has not eaten in 4 days, she's at the vet's now. He said her calcium levels are very high, what could this mean?

Answer: 

There are numerous causes of an elevated calcium, or hypercalcemia. Other general chemistry parameters are used to point veterinarians in one direction or another. The most common causes of hypercalcemia are as follows: • hyperparathyroidism • neoplasia (malignancy) • kidney disease (renal failure) • hypoadrenocorticism • acidosis • osteolytic diseases (bone destruction) • Vit D toxicosis • granulomatous disease (chronic infectious/inflammation) Additional work up is recommended, as I'm sure your veterinarian will suggest.