Shared Flashcard Set

Details

USN 522 osteoporosis ppt
dumbed down osteoporosis flashcards
84
Medical
Graduate
04/17/2009

Additional Medical Flashcards

 


 

Cards

Term
What is bone strength?
Definition
bone density + bone quality
Term
What is the precursor for an osteoblast?
Definition
mesenchymal cell
Term
What is the precursor for an osteoclast?
Definition
hematopoietic cell
Term
What is osteoporosis?
Definition
a skeletal disorder characterized by compromised bone strength predisposing to an increased risk of fracture
Term
Respectively approximately what percentages of men and women > 50 years of age will suffer at least 1 osteoporatic bone fracture in their lifetimes?
Definition
~25% and ~50%
Term
Over _____ fractures each year in men and women > 50 years old.
Definition
2 million
Term
What non - medical conditions are risk factors for an osteoporatic fracture?
Definition
Stunt Men (not) have a Proud HISTORY of being PAID FELLERs - (Small, thin frame), Smoking, Men < women, Postmenopausal, HISTORIES (personal HISTORY of osteoporosis, personal HISTORY of fractures as an adult, family HISTORY of low trauma fracture), Poor health, Advancing Age, Impaired I-sight despite correction, Dementia, Frequent Falls, Estrogen deficiency at an Early age (<45 years), Lifelong Low calcium intake, Low physical activity, Excessive alcohol intake, Race (caucasian or asian)
Term
What medical conditions increase risk for an osteoporatic fracture?
Definition
GOLDEN RAd - GI diseases, Organ transplantation, Liver diseases, Dietary disorders, Endocrine disorders, Neurological disorders, Renal disease, Autoimmune connective tissue disorders
Term
What are the predominant secondary causes of osteoporosis in men?
Definition
HAGGISH - Hypogonadism, Alcoholism, Glucocorticoid excess, GI disorders, Immobilization, Smoking, Hypercalciuria
Term
What medications are associated with reduced bone mass?
Definition
"HIDden GLACIEr" rated PG - long term Heparin use, Immunosuppressants, Depo-provera, Glucocorticoids (oral and high dose inhaled), Lithium, Aromatase inhibitors, Cytotoxic drugs, (Intravenous food) TPN use, Epilepsy drugs - anticonvulsants, PPIs, GNRH inhibitors (leuprolide)
Term
How is glucocorticoid induced osteoporosis manifested?
Definition
decreased osteoblast activity, increased osteoclast activity, decreased calcium absorption, increased calcium excretion, suppressed sex steroid production
Term
Women can lose up to ___% of their bone mass during the first 5-7 years following menopause
Researchers have shown that an average bone loss of ___-___% per year occurs during the first ___ years after menopause compared to almost no bone loss during postmenopausal years ___-___
Definition
20, 3-5, 5, 6-8
Term
Prior Vertebral Fracture -
Increases vertebral fracture risk ___-fold
increase hip fracture risk ___-fold
Definition
5, 2
Term
Up to ___ of patients with a prior vertebral fracture will repeat a fracture within 3 years
Mortality is ___ after a fracture
Definition
1/2, high
Term
Hip fracture - Most _____ consequence of osteoporosis
___-___% mortality rate during the year following a fracture - higher in _____
___% require nursing home care
After 6 months - only ___% can walk unaided
< ___% of hospitalized patients regain their pre-fracture confidence in activities
Definition
serious, 10-24, men, 30, 15, 20
Term
What are the T-scores for normal BMD?
Definition
-1 < T-score < 1
Term
What are the T-scores for low BMD or osteopenia?
Definition
-2.5 < T-score < -1
Term
What are the T-scores for osteoporosis?
Definition
T-score <= -2.5
Term
What are the T-scores for severe osteoporosis?
Definition
T-score <= -2.5 and a fracture
Term
Which BMD is the best predictor of fracture risk?
Definition
Hip BMD
Term
Who should have BMD testing done?
Definition
All women ages 65 and older
Younger postmenopausal women with one or more risk factors other than race, postmenopausal and female
Postmenopausal women who present with fractures
Anyone who is being treated for bone loss to monitor for efficacy
Term
What are the markers of bone resorption?
Definition
NTX, CTX, DPD, TRAP, OH-PRO
Term
What are the markers fo bone formation?
Definition
BAP, OC, PINP
Term
Who should look at bone turnover markers?
Definition
Patients with borderline treatment criteria
Starting drug therapy (baseline)
Monitoring for response of drug therapy (efficacy)
Patients with difficult to interpret BMD
Term
Concerning osteopososis what are the treatment / prevention guidelines for everyone?
Definition
Counsel all patients on risk reduction
Instruct all patients on adequate daily intake of calcium and vit D
Provide guidelines for regular participation in weight-bearing exercise and muscle strengthening exercises
Provide strategies for fall prevention
Avoid smoking and excessive ALOH intake
Term
What are the recommended daily allowances for calcium?
Definition
1-3 yo --> 500mg, 4-8 yo --> 800mg, 9-18 yo --> 1300mg, 19-49 yo --> 1000mg, >49 yo --> 1200mg (pregnant of lactating follow same age recommendations)
Term
What is the approximate calcium in the following items: 8 oz. yogurt, 3 oz. sardines, 1.5 oz. cheddar cheese, 8 oz. milk, 6 oz. calcium fortified OJ?
Definition
300mg
Term
What is the approximate calcium in the following items: 1/2 cup turnip greens, 1/3 cup vanilla ice cream?
Definition
100mg
Term
What is the calcium range for fortified cereal?
Definition
100 - 1000mg
Term
What is the calcium range for 8 oz. soy beverage?
Definition
80 - 500mg
Term
What are the recommended daily allowances for Vitamin D?
Definition
< 50 yo --> 400 - 800 IU
> 50 yo --> 800 - 1000 IU
Term
What is the biologically active form of vitamin D?
Definition
D3 or calcitriol
Term
What serum concentration of biologically active vitamin D to promote asorption of calcium?
Definition
> 30ng / mL
Term
Why is excercise recommended for bone health / fracture prevention?
Definition
Decrease risk of falling
Improve bone mass and strength
Enhance muscle strength
Improve balance and flexibility
Improve posture
Term
What general exercise categories are recommended for bone health / fracture prevention?
Definition
weight-training and resistance-training excercises
Term
What are the excercise guidelines for those who already have osteoporosis?
Definition
Avoid exercises involving forward flexion of the spine
Avoid exercises that twist or jerk the spine
Keep one foot on the floor at all times
Balance training is essential
Term
What are the drug categories used in osteoporosis treatment?
Definition
HRT, SERM / raloxifene, calcitonin, parathyroid hormone, bisphosphonates
Term
Estrogen is FDA approved for (prevention, treatment, both) of osteoporosis.
Definition
both
Term
What are the general objectives in osteoporosis prevention / treatment?
Definition
inhibition of calcium resorption and stimulation of bone formation
Term
Estrogen's primary effect on bone is (antiresorptive, proformation) activity.
Definition
antiresorptive
Term
What are some important risks to consider when balancing risk / benefit of taking estrogens for osteoporosis?
Definition
4 Cs - Cancer of endometrium, breasts, ovaries
May cause increased cardiovascular problems
(clot throwing) thromboembolic disorders
Cholelithiasis (gall stones)
Term
FDA statement on estrogens for osteoporosis -
When prescribing medication to prevent osteoporosis, you should consider all _____ preparations first
When prescribing HRT, you should prescribe the _____ dose for the _____ time to achieve treatment goals
You should prescribe HRT products only when the benefits are believed to _____ the risks
Definition
non-estrogen, smallest, shortest, outweigh
Term
What does SERM stand for?
Definition
Selective Estrogen Receptor Modulator
Term
What is the only SERM that is FDA approved for postmenopausal osteoporosis?
Definition
Evista (raloxifene)
Term
Where is raloxifene an agonist to estrogen receptors?
Definition
bones and serum lipids
Term
Where is raloxifene an antagonist to estrogen receptors?
Definition
endometrium, breast tissue
Term
What is the frequency and dosing for raloxifene in osteoporosis?
Definition
60mg QD
Term
Raloxifene's primary effect on bone is (antiresorptive, proformation) activity.
Definition
antiresorptive
Term
What are the primary adverse effects of raloxifene?
Definition
increased risk of throboembolic disease and increased hot flashes
Term
What are raloxifene's contraindications?
Definition
pregnant or may become pregnant, active or past history of venous thromboembolic disease, hepatic dysfunction may need a dosage adjustment
Term
(MIACALCIN) Calcitonin's primary effect on bone is (antiresorptive, proformation) activity.
Definition
antiresorptive
Term
Calcitonin acts directly on ____ to decrease bone _____ primarily from _____ sites.
Most effective on _____ spine. May increase BMD by 1-3% of trabecular bone but little effect on cortical bone
Decreases fractures of _____, but not _____ area. Effectiveness decreases after 1-2 years.
Definition
osteoclasts, resorption, vertebral, lumbar, trabecular, cortical, spine, hip, 1-2
Term
What is the dosing and frequency for calcitonin in osteoporosis?
Definition
SQ or IM 100 IU QD
Intranasal 200 IU QD
Term
Name the bisphosphonates (generic and brand).
Definition
Alendronate (Fosamax)
Risedronate (Actonel)
Ibandronate (Boniva)
Zoledronic Acid (Reclast)
Term
Bisphosphonates are FDA approved for (prevention, treatment, both) of osteoporosis.
Definition
both
Term
t ½ of bisphosphonates may be ___-___ years
Definition
1 - 10
Term
Bisphosphonates' primary effect on bone is (antiresorptive, proformation) activity.
Definition
antiresorptive
Term
What are the adverse effects of all bisphosphonates?
Definition
tOUGH - Osteonecrosis of the jaw, Ulcer (esophageal and/or gastric), GI (pain, reflux, nausea, gastritis), Hypocalcemia
Term
What should be done to minimize GI symptoms of bisphosphonates?
Definition
Use PPI the night before the dose
Term
Bisphosphonate patient education - Take at least ___ minutes before breakfast, Take with a full glass of _____ (Not with orange juice, coffee, mineral water or _____ products), Don’t lie down for at least ___ minutes, Do not take with _____ or _____, Report any _____, _____ or _____ problems, Missed doses : Daily - _____, Weekly – Next _____, Monthly – minimum of ___ day between doses
Definition
30, water, dairy, 60, calcium, minerals, esophageal, stomach, bowel, skip, morning, 7
Term
Bisphosphonates are (renally, hepatically) cleared.
Definition
renally
Term
Which bisphosphonates have a formulation with supplemental vitamin D?
Definition
only alendronate has a formulation with 5600 IU vitamin D QW
Term
Which bisphosphonates have a QD dosing formulation?
Definition
alendronate and risedronate (5mg PO)
Term
Which bisphosphonates have a QW dosing formulation?
Definition
alendronate and risedronate (PO)
Term
Which bisphosphonates have a QM dosing fomulation?
Definition
ibandronate and risedronate (PO)
Term
Which bisphosphonates have a QY dosing fomulation?
Definition
IV 5mg zoledronic acid
Term
Which bisphosphonates have a formulation with supplemental calcium?
Definition
only risedronate QW
Term
What are the CrCl limits for the bisphosphonates?
Definition
Alendronate avoid use with CrCl < 35, all others avoid use with CrCl < 30
Term
What special instructions are there for ibandronate QM and zoledronic acid QY?
Definition
Ibandronate should be taken 60 minutes before meal, patient should be well hydrated before administering IV zoledronic acid
Term
What side effects are we worried about specific to zoledronic acid?
Definition
increased risk of serious atrial fibrilation, arrhythmias, chills, nausea, bone pain, back pain, and infusion related SE
Term
What are the generic and brand names for prescription parathyroid hormone?
Definition
teriperitide (Forteo)
Term
Parathyroid hormone's primary effect on bone is (antiresorptive, proformation) activity.
Definition
proformation
Term
How is parathyroid hormone administered?
Definition
SQ 20mcg QD X18-24M
Term
Parathyroid hormone: Decreases the risk of vertebral fractures and non-vertebral fractures (during / after) ___ months of use, Indicated for men and _____ women with _____ and a _____ risk of _____
Definition
after, 18, postmenopausal, osteoporosis, high, fracture
Term
What condition put you at "high" risk for fracture that wuold qualify a patient for indication of parathyroid hormone use?
Definition
Previous osteoporotic fracture
Multiple risk factors for fracture
Extremely low BMD (T score –3 and below)
Unresponsive or intolerant to other therapies
Term
What is the mechanism of action for parathyroid hormone?
Definition
decreases apoptosis of osteoblasts, stimulates differentiation of bone lining cells and preosteoblasts to osteoblasts resulting in a net increase in the number and action of bone forming osteoblasts
Term
Continuous (high dose) PTH is associated with (anabolic / catabolic) effects.
Definition
catabolic
Term
Daily (low dose) PTH is associated with (anabolic / catabolic) effects.
Definition
anabolic
Term
1
Definition
Term
1
Definition
Term
1
Definition
Term
1
Definition
Term
1
Definition
Term
1
Definition
Supporting users have an ad free experience!