Bone Markers

Vitamine D
PTH (Parathyroid hormone)
Calcium
Phosphorus

When is it ordered?

Testing may be performed along with other tests such as a calcium, vitamin D, thyroid testing, and parathyroid hormone when bone loss is detected during a bone mineral density test (diagnostic imaging) and/or when a person has a history of unexpected bone fracture.
In children, testing may be done when they have signs and symptoms suggesting a metabolic bone disorder, such as:

Bone and/or joint pain
Increased frequency of fractures
Delayed growth and bone development
Deformed bones
Brittle teeth

For managing and treating bone diseases, one or more bone marker tests may be performed prior to anti-resorptive or bone formation therapy and then typically 3 to 6 months later to monitor the effectiveness of treatment.