When you are pregnant, prolactin changes are completely normal. In fact, your prolactin must increase in order to encourage the production of milk in your mammary glands. During pregnancy your hormones are all over the place. In particular, your estrogen levels begin to rise, and this is what stimulates the increase in your prolactin levels.
Hypercalcemia in Cats. Hypercalcemia is characterized by an abnormally high amount of calcium in the blood. A cat is considered hypercalcemic when its total serum calcium level is greater than 10.5 mg/dL.
Malignancy is the most common cause of persistent hypercalcemia in dogs and is a common cause in cats. In hypercalcemia of malignancy, the hypercalcemia primarily results from increased osteoclastic bone resorption, but increased renal tubular resorption and increased intestinal absorption may also play a role.