DEXA is a scanning technique used to assess Bone Mineral Density and can diagnose osteoporosis and assess the risk of osteogenesis imperfecta (‘brittle bones’).

The equipment aims a low dose of X-rays at the bones being tested and performs calculations that give a highly accurate measurement of the amount of mineral in the bone.

It then compares your measurements with those of other people of a similar age and weight, and of the same sex and ethnic background.

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TEST PREPARATION

If you’ve never had an DEXA scan you might not know what to expect and this brief guide is designed to answer the questions that might be in your mind.

  • It’s important to tell us before your scan if you:
  • are (or might be) pregnant
  • have had an X-ray within the previous six months
  • Unless we let you know otherwise, you don't need to make any special preparations before the scan. You can eat and drink as normal and take any prescribed medicine.
  • Please wear clothing without zippers or metal buttons and leave jewelry and watches at home, if possible. If you wear a bra, we will ask you to remove it.
  • Please let us know if you have any disabilities so that we can ensure we are able to offer you the highest quality service.
  • If you’ve been given a prescription (order) for this exam, please be sure to bring it with you on the day of your appointment.
  • Once you’ve checked in at reception, a member of the radiography team will meet you, explain the procedure, go through your safety questionnaire with you and ask you to sign a consent form. You’ll have the opportunity to ask any questions.
  • We will ask you to change into an examination gown. We will provide somewhere to store your personal possessions.
  • Throughout the procedure, you will be looked after by the radiography team. They will explain what’s happening and will be there if you experience any discomfort.
  • You will not need an injection.
  • The technologist operating the scanner will be able to see and hear you throughout the procedure.
  • Spine or hip measurements are taken and this will take around five minutes.
  • For safety reasons, we cannot allow anyone to accompany you into the exam room.
  • There are no restrictions on normal activity, you can eat and drink normally, drive and return to work immediately after the scan.
  • A radiologist will examine the images shortly after your visit and send a report to your doctor or consultant, normally within a few days.
  • For ethical and professional reasons, we cannot discuss results with you. Only your doctor or consultant can do this