Osteoporosis Flashcards
Osteoporosis definition
skeletal disorder characterized by compromised bone strength and predisposing to an increased risk of fracture
How is bone strength determined
bone mineral density (BMD) and bone quality
What percentage of men die within one year of a hip fracture
40%
How many men will suffer an osteoporosis related fracture over 50 years of age
1 in 4
T or F: patients who suffer hip fractures have higher mortality rate
True
vertebral fractures associated with
acute and chronic pain
hip fractures associated with
loss of ambulatory status in about 1/3 of pts
Are there sx related to low BMD
NO
why are bone resporbtion and formation important
In patients without osteoporosis, bone resorption followed by bone formation is sequential without overall loss of bone
Pt hx that puts them at risk for osteoporosis
- menopause (women)
- testosterone levels (men)
- broken bones as adult
DEXA
Bone density test - the only one that can diagnose osteoporosis before a broken bone
T-scores
above -1: normal
- 1 to -2.5: osteopenia
- 2.5 or greater: presence of osteoporosis
- standard deviations above or below the mean
DEXA of what bone(s) is the gold standard for diagnosis
hip and spine (lumbar L1-L4)
- peripheral sites include forearm, wrist, and heel
Does hip or spine have more uniform bone tissue
hip - better predictor of osteoporosis risk
What dose should not be exceeded for calcium
500mg
