Below is an instruction from Human. Write a response.
    ### Instruction:
    How to diagnose Primary Hyperparathyroidism ?
    ### Response:
    Once the diagnosis of primary hyperparathyroidism is established, other tests may be done to assess complications:
                
- Bone mineral density test. Dual energy x-ray absorptiometry, sometimes called a DXA or DEXA scan, uses low-dose x rays to measure bone density.
    