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.
Oxalate Crystals and Stones. Formation Oxalate crystals and stones are more likely to occur in acidic urine and if the cat has high calcium levels in the blood. This could be caused by excessive intake of calcium, protein, sodium, or vitamin D. Some metabolic disorders such as hyperparathyroidism, some cancers, and Cushings disease may also contribute to the development of oxalate stones. Unfortunately, oxalate stones often occur in cats with normal blood calcium levels, as well. Treatment and Prevention