1. Why isn’t calcitonin testing performed as a routine screen?
C-cell hyperplasia and MTC are both sufficiently rare that it is not useful to screen for calcitonin in the general population.
2. If my thyroid is removed, will I need to replace my calcitonin?
No, the body can function without it. But you will need to take other thyroid hormones (usually T4) to regulate your metabolism.
3. Is calcitonin ever used as a supplement?
Yes, but in a totally different context. Because it inhibits bone resorption when given in very large doses, calcitonin is sometimes given as a drug to people who have osteoporosis. It helps maintain bone density and has a pain-relieving effect on bone.
