Dual-energy X-ray absorptiometry (DEXA) is a technology that uses a very
low amount of X-ray energy to detect the presence of osteoporosis. Bone
mineral content tends to begin declining in people who are in their mid-30s
or older, and the loss of bone tissue accelerates in women after menopause.
Reduction of mineral content, characterized by porous and brittle bones,
is known as osteoporosis. It’s a potentially serious condition because
it makes bones more vulnerable to fractures and ultimately can lead to
diminished mobility and independence.
DEXA scanning can identify low bone density in patients at an early stage,
enabling doctors to prescribe appropriate treatment before the condition
worsens. Images of the lower spine and hips are most often used in checking
What to Expect
You will be asked to lie quietly on your back on a padded table while a
movable arm passes over your body. A technician will remain with you and
you will feel no sensations from the exam, which typically takes 15 to
How to Prepare
When you schedule your appointment, we will inform you about any specific
preparations depending upon the specific procedure your doctor has ordered.
Please contact the Scheduling Department at 949.764-5573 if you have any
Wear comfortable clothing without metal belts, buttons or zippers.
You must not take any calcium supplements, liquid calcium, herbal calcium
supplements, tums or antacids 48 hours prior to the exam. Failure to follow
the calcium instructions will result in patient being rescheduled
Please complete, print out and bring with you the following forms to your
Bone Densitometry Pt History Questionnaire -
Outpatient Medication Reconciliation form
(for Breast Center and Interventional Procedures -Download PDF
Locations where Hoag provides DEXA services