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The use of radiation apparatus is regulated by Queensland Health under the Radiation Safety Act 1999. Physique Sciences Radiation Safety and Protection Plan provides that we limit exposure from DEXA body composition scans to no more than six (6) scans in a 12 month period.

DEXA scanning involves ionising radiation but it is a very low radiation dose, approximately 4 uSv for a full body scan using our unit, the Hologic Discovery Wi. The table below compares radiation dose values (in effective dose) for some context. An extract from a published journal article explaining the radiation risks of DEXA total body scanning is available on our website and in our reception for further reading. This article concludes there is no scientific evidence of risk at doses below about 50 uSv in a short time.

Effective dose values for Hologic Fanbeam DXA and other imaging procedures & background radiation*

Procedure                                     Client Dose (uSv)

Body CT scan                                5000 - 15000

Head CT scan                                2000 4000

Lumbar Spine X-ray                        600 - 1700

Dental bitewing                               60

7 hr aeroplane flight                         50

Chest X-ray                                    40 - 50

DXA bone mineral assessment      11

Natural background radiation (daily)   6-8

DXA whole body composition         1-4

To comply with the requirements of informed consent, please sign below. 

I Agree
I ­­­have read and understood the radiation information above and in signing the form below I declare have not been already been scanned more than five (5) times on any DEXA unit in the past 12 months. 

February 19, 2020

 

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 By checking here, you are consenting to the use of your electronic signature in lieu of an original signature on paper. You have the right to request that you sign a paper copy instead. By checking here, you are waiving that right. After consent, you may, upon written request to us, obtain a paper copy of an electronic record. No fee will be charged for such copy and no special hardware or software is required to view it. Your agreement to use an electronic signature with us for any documents will continue until such time as you notify us in writing that you no longer wish to use an electronic signature. There is no penalty for withdrawing your consent. You should always make sure that we have a current email address in order to contact you regarding any changes, if necessary.


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