Office-Osteoporosis, Obesity, Rape, IPV Flashcards
What does Dexa scan stand for?
Dual energy x-ray absorptiometry
What is the Dexa scan
Tool used to measure the BMD of the hip and spine to assess for bone loss and risk of fracture
What is a normal T score?
> /= -1 SD below mean young adult peak bone mass
What is a T score for osteopenia?
Between -1 to -2.5 below mean young adult peak bone mass
What is a T score for osteoporosis?
</= -2.5 SD below young adult peak mass
What is a T score?
Compares the individuals BMD measurement at the hip and spine with the peak mean BMD of a normal young adult
What is a Z score?
Standard deviations between individual BMD and mean BMD from reference population of the same age, sex,race
What bones should be scanned for a Dexa scan?
Central bones like hip and spine
When does the screening for dexa scan begin?
- Age 65
- Postmenopausal with 1 or more risk factors for osteoporosis
- FRAX index of 8.4% or greater
How often do you perform dexa scan?
q2 years
What are risk factors for osteoporosis?
Personal history of fracture
Frail(low BMI)
First degree relative with fracture
Caucasian race
Current cigarette smoker
Low calcium intake
Poor eyesight
Inadequate physical activity
Estrogen deficiency
Alcoholism
medications
Medical conditions
What is the normal rate of bone loss?
Premenopausal: 0.5% per year
Postmenopausal: 5% per year
What is the workup for osteoporosis?
CBC
CMP
VItamin D level
24hr urine calcium
TSH
PTH
What is the FRAX index?
Fracture risk screening tool that predicts the risk for an osteoporotic fracture in the next 10 years
What age should FRAX index be used for?
> 40 years old