Learn more about calcitonin, a hormone that plays a vital role in regulating calcium levels and bone health. Visit Lab Tests Guide for detailed insights on its functions, testing procedures, and clinical significance. Adult dosages of calcitonin for handling postmenopausal osteoporosis, Paget disease of bone, and hypercalcemia are mentioned below. https://www.labtestsguide.com/bun-creatinine-ratio