Osteoporosis Flashcards
Bone is a living tissue that does what
Reserve for calcium and phosphate ions
What’s crucial in monitoring quality of bone
Remodelling/turnover
Cortical bone found where
Shaft of long bones
Bone mass drops when
Over 40 or post menopausal
DEXA measures what
Bone density
How much mineral is in area measured
Measured in SD
Uses X Ray
Osteoporosis is
Systemic skeletal disorder
Low bone mass
Microacrhitetrual deterioration
Risk of fracture
Bone density below 2.5 SD
Osteopenia is
Betweeen low end of normal and osteoporosis
1-2.5 SD
Fragility fracture
Fracture following fall from standing height or less
Who’s in higher risk of osteoporosis
Women in menopause due to increase in menopause
Determinants of low bone structure or function
Low B,I
Over 14units or alcohol a week
Smoking
Treatment of low bone density
Glucocorticoid
Vit d and calcium homeostasis
Low bone structure cause
Age
Gender
White/Asian
Fragility
FRAX calculates
Absolute risk of major osteoporotic and hip fracture
What can’t be used as low bone density diagnosis
Bone markers in urine or serum
Investigations for bone density
DEXA X-ray
MRI
Bone profile
Parathyroid hormone
Renal and liver function test