Anurse is asked which mineral calcitonin and parathyroid hormone regulate. how should the nurse respond?

The mineral that calciltonin and parathyroid hormone regulate would be calcium. These two hormones work together to regulate and maintain the calcium ion level present in blood. Calcitonin is a hormone that is being produced by the C-cells which controls phosphate and calcium levels in the body by reducing the levels, counteracting the action of the parathyroid hormone which raises the level of the phosphate and the calcium ions in the blood. The parathyoroid hormone is produced in the parathyroid glands which functions in bone remodeling and controlling calcium levels. Together, they work together to maintain the levels of these ions in the blood which would be the safest level. 

The answer is constant.