Osteoperosis Flashcards

(67 cards)

1
Q

Osteoblasts

A

bone formation

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2
Q

Osteoclasts

A

bone resorption (break down bone)

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3
Q

how bone mineral density is measured and diagnosed

A

DEXA/DXA scan which spits out a T or Z score

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4
Q

What age should BMD be measured?

A

All women> 65 or men > 70

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5
Q

what is the FRAX tool

A

estimates the risk of osteoperotic fracture in the next 10 years

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6
Q

how do you interpret a T score

A

normal is > -1, -1–2.4 is low bone mass, and less than 2.5 is osteoperosis

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7
Q

what are medications that can cause sedation or orthostasis

A

sedatives, narcotic analgesics, hypnotics

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8
Q

what are the exercise people with osteoporosis should do

A

weight bearing exercise and muscle strengthening exercise

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9
Q

when is it important calcium be adequare

A

in pregnancy, children, years around menopause

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10
Q

what is required for calcium absorption

A

vitamin D

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11
Q

what does vitamin D deficiency cause in kids and adults

A

in children, it can cause rickets and in adults, it can cause osteomalacia

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12
Q

recommended calcium

A

800-2000 IU daily

  • 1000-1200 elemental caldium

carbonate 40% elemental

citrate 21% elemental

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13
Q

which calcium is acid dependant must be taken with meals

A

calcium carbonate

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14
Q

cholcalciferol

A

d3

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15
Q

ergocalciferol

A

d2

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16
Q

dosing of vitamin d

A

daily: 5000-7000 IU or weekly 50,000 IU for 8-12 weeks

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17
Q

max daily elemental calcium

A

500 units

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18
Q

oscal

A

calcium carbonate

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19
Q

tums

A

calcium carbonate

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20
Q

what is indicated for treatment of osteoporosis

A

bisphosphonates (also prevention) desomab (RANKL), teriparatide (parathyroid), calcitonin

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21
Q

what is indicated for prevention of osteoporosis

A

bisphosphonates (except IV alendronate, also used for tx), estrogen-based therapies (raloxifene)

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22
Q

What is the criteria for tx osteoperosis

A

Either:

1) presence of a fragility fracture
2) post-menopausal people with a BMD score of less than -2.5

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23
Q

1st line for osteoperosis

A

bisphosphonates

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24
Q

PO administration of bisphosphenates

A

must stay upright for 30 minutes and drink water, usually given weekly or monthly

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25
Side effects of bisphosphentes
esophagitis, hypocalcemia, GI serious: atypical femur fractures, osteonecrosis of the jaw
26
Treatment duration with bisphosphenates
3-5 years in patients with a low risk of fracture
27
fosamax
alendronate (oral bisphosphonate, given daily or weekly)
28
Boniva
Ibandronate (IV bisphosphonates every 3 months and oral given every month)
29
Reclast
Zoledronic Acid (IV, once yearly)
30
What is Zometa
an injectable bisphosphonates
31
risendronate is given how often
daily, weekly, or monthly
32
Are bisphosphonates indicated in renal impairment?
no - they deplete calcium
33
which form of bisphosphonate is preferred in esophogitis
IV
34
what is raloxifene, SE, boxed warning/contraindications
a SERM that decreases bone resorption increases risk of VTA and death due to stroke (do not use in VTA) contraindicated in pregnancy side effects *think estrogen* hot flashes, peripheral edema, arthralgia, leg cramps
35
boxed warning for conjugated estrogen/Serm combo
also increases risk of VTA and stroke (do not use in VTA) just like raloxifene but additionally endometrial cancer due to the unopposed estrogen also contraindicated in pregnancy just like raloxifene but additionally breast cancer
36
how does calcitonin (miacalcin) work?
by inhibiting osteoclasts which break down bone
37
Miacalcin
Calcitonin
38
Warnings for calcitonin
hypersensitivity to salmon derived products, increased risk of malignancy with long-term use, hypocalcemia
39
What is teraperatide and abaloparatide moa
analogs of PTH which stimulates osteoblasts and increases bone formation
40
what is teraperatide and abaloparatide used for
high risk of fractures but has cumulative lifetime duration of two years or less
41
What is the boxed warning for the PTH analaogs (teraperatide and abaloperatide) and how do you store
osteosarcoma other warnings include hypercalcemia side effects: arthralgias, leg cramps,nausea/orthostasis Notes: Keep refrigerated, protect from light
42
What is denosumab (prolia)
a monocolonial antibody injection that binds to RANKL and prevents osteoclast activity which is given every 6 months via IV Don't confuse with Xgeva which is used to treat hypercalcemia of malignancy but has same MOA
43
anything that prevents osteoclast formation has what effect on calcium
hypocalcemia because you aren't breaking bone to make calcium
44
anything that stimulates osteoblasts cause what
hypercalcemia
45
which two medication classes can cause ONJ?
bisphosphonates and denosumab (a rankl)
46
when is menopause reached? What causes it?
When last period was 1 year ago, caused by a decrease in estrogen and progesterone
47
what are the vasomotor symptoms in perimenopause
hot flashes, night sweats, vaginal dryness
48
most effective tx for menopause and how it works
estrogen therapy which causes a decrease in LH
49
why is estrogen combined with progestin in women with a uterus
because unopposed estrogen can cause endometrial cancer
50
when are local estrogen products used
dry vagina only
51
17 beta estradiol formulations
estrace (cream), vaginal ring (estring), vaginal tablet (vagifem),
52
premarin
conjugated equine estrogens (comes in tablet, cream, injection)
53
alora
estradiol
54
climera
estradiol
55
vivelle-dot
estradiol
56
what is conjugated equine estrogens with medroxyprogesterone
a systemic hormone therapy
57
provera
medroxyprojesterone
58
prometrium
micronized progesterone
59
how often is vivelle dot and olora applied
twice weekly
60
how often is climera applied
once weekly
61
what natural products are used for vasomotor sx
black cohash, evening primrose oil, soy, red clover
62
What is paroxetine for and what is the major DDI?
for vasomotor, a CYPP450 2D6 inhibitor therefore blocks effectiveness of tamoxifen and increases risk of bleeding in warfarin
63
what is used to treat dyspareunia (painful intercourse
Ospemifene is a oral estrogen agonist/antagonist for severe (not mild) dyspareunia. Astroglide is a lubricant marketed for dyspareunia.
64
What medications can lower testosterone and cause hypogonadism
methadone, chemo, cimetitidne, spironolactone
65
what does testosterone increase
hematocrit (clotting risk)
66
what are the risks and boxed warnings of testosterone
can cause prostate growth and restricted in severe BPH, baldness, acne, gynocomastia, increased appetite, reduced sperm count boxed warning do not exposekids
67
what control is testosterone
A CII