Imaging Department

Frequently Asked Questions


What is a DEXA?

Bone densitometry, also called dual-energy x-ray absorption (DEXA), uses a very small dose of radiation to produce an image, usually of the lower spine and hips, to measure bone loss.

What is the Purpose of a DEXA?

Your doctor may order a DEXA scan to:

  • Diagnosis osteoporosis
  • Assesses an individual's risk for developing osteoporotic fractures

How do I prepare?

  • Wear a 2-piece outfit with no metal (zippers, buttons, or belts)
  • Remove all metal objects from your pockets, such as phones, keys, money clips, or change.
  • Do not take calcium supplements 24 hours prior to the procedure
  • Bring your photo ID
  • Bring your insurance card

What Can I Expect?

During a DEXA

You may be asked to lie on your back on a padded table. The technologist will position your body to obtain the necessary images. A movable arm will pass over your body while you remain still. An exam typically takes 15-30 minutes.

After a DEXA

After a DEXA, you generally can resume normal activities with no side effects.


The DEXA scanner calculates a numerical reading of bone strength, called a T-score, which is used to compare your bone density with established values. Your doctor will receive a results within 24 hours and will then discuss with you what further procedures, if any, are needed.

Where to Check In

Waianae (Main Campus) – 86-260 Farrington Hwy
Harry & Jeanette Weinberg Family Medicine Building
1st Floor, Imaging Department

Our Imaging Department offers Bone Density Mondays and Wednesdays from 8:00 am to 12:00 pm. A referral is needed from your physician. To schedule an appointment, call (808) 697-3487 Monday - Saturday between 8am – 6pm.

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