Bone Mineral Density (BMD) - Suburban Diagnostics

SubUrban Icon BONE MINERAL DENSITY (BMD)

Bone Densitometry or DEXA scan

Osteoporosis is a silent disease that can’t be detected until it reaches an advanced symptomatic stage or causes accidental fractures. Hence, regularly monitoring patients for their bone density is the only way a clinician can diagnose osteopenia (low bone mass) or osteoporosis at an early stage. After this, he can exercise remedial measures. A bone mineral density test is an easy, reliable test that measures the density or thickness of bones, using Dual X-ray Absorptiometry (DEXA) of the hip and spine, as preferred areas of measurement.

BMD test results are estimated on the basis of:

T-SCORE

  • The patient’s bone mineral density as compared to the peak bone mass in a normal young adult
  • A score of 0 means BMD = normal of a healthy young adult
  • The diagnosis of osteoporosis or low bone mass is based on the T-score
Z-SCORE

  • The patient’s bone mineral density as compared to the peak bone mass in an age-sex matched adult
  • Z-SCORE is useful for determining whether an underlying disease or condition is causing bone loss
Instructions to Patients for BMD
  • Patients should avoid calcium supplements and multivitamins 24-48 hours prior to the test
  • Clothes with metal buttons or buckles should be avoided
  • Any jewellery or metal which may interfere with the test will have to be removed

 

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