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.
The normal adult value for calcium is 4.5-5.5 mEq/L. There are many reasons for an elevated blood calcium level. Reasons for the hypercalcemia may include: 1  Cancer that started in the bone, or cancer that has spread to the bone. 2  Some cancers can cause hypercalcemia themselves, without spread to the bone. 3  Other conditions such as; overactive parathyroid gland or Paget's disease of the bone.