Chapter 49: Osteoporosis, Menopause & Testosterone Use Flashcards
Which medications can cause osteoporosis
Anticonvulsants Aromatase inhibitors Depo-Provera GnRH agonists Lithium PPIs Steroids (>/= 5 mg daily of prednisone or prednisone equivalent for >/= 3 months) Thyroid hormones Others (heparin, loops, SSRIs, TZDs)
What is the gold standard to measure BMD and diagnose osteoporosis
DEXA scan
Who should have BMD measured
All women >/= 65 years & men >/= 70 years
What is a T-score
compares the patient’s measured BMD to the average peak BMD of a healthy, young, white adult of the same sex
A T-score at or above __ correlates with stronger (denser) bones
-1
A T-score = ___ correlates with osteoporosis
-2.5
What is the FRAX tool
estimates the risk of osteoporotic fracture in the next 10 years
Recommended daily intake of calcium for most adults
1,000-1200 mg elemental Ca
Do not exceed 500-600 mg of elemental Ca per dose
Calcium carbonate has __% elemental Ca & calcium citrate has __% of elemental Ca
40%
21%
Which form of calcium is acid-dependent
Carbonate
Which form of calcium must be taken with food
Carbonate
think of the word CARB = food
Calcium deficiency is defined as < ___ ng/mL
30
Vitamin deficiency should be treated with
cholecalciferol (D3) or ergocalciferol (D2) dosed daily (5,000-7,000 IU) or weekly (50,000 IU)
SE of calcium supplements
constipation
Calcium carbonate should NOT be taken with which drug class
PPIs (because it is acid-dependent)
Which drugs are approved for PREVENTION of osteoporosis
Bisphosphonates (except IV ibandronate); (1st line)
Raloxifene and Duavee
Which drugs are approved for TREATMENT of osteoporosis
Bisphosphonates (1st line)
Denosumab
Teriparatide
Calcitonin
Counseling for bisphosphonate administration
must stay upright for 30 min and drink 6-8 oz of plain water
bisphosphonate SE
esophagitis, hypocalcemia, GI effects (dyspepsia, dysphagia, heartburn, N/V)
RARE: atypical femur fractures, osteonecrosis of the jaw
Treatment duration with bisphosphonates in patients with low risk of fracture
3-5 years (this is because of the risk of femur fracture and ONJ)
Denosumab is given via what administration and how often
SC every 6 months
Denosumab SE/warnings
hypocalcemia, ONJ, atypical femur fractures
HTN, fatigue, edema, dyspnea, HA, NVD, ↓ PO4
Which drugs are recommended for very high risk patients only (e.g., hx of severe vertebral fractures)
Teriperatide & abaloparatide
How often are Teriperatide & abaloparatide given and via what route
SC daily
Teriperatide & abaloparatide SE
hypercalcemia, arthralgias, leg cramps, nausea, orthostasis/dizziness
What drugs are alternatives to bisphosphonates if high risk of vertebral fractures
Raloxifene, Bazedoxifene/Estrogens