Osteoporosis Flashcards

(51 cards)

1
Q

What is metabolic bone disease

A

Any bone disorder resulting from chemical aberrations

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2
Q

What are two examples of metabolic bone disease

A

Osteopenia
osteoporosis

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3
Q

What determines the difference between osteopenia and osteoporosis

A

Severity of the bone disease

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4
Q

What are the two different types of osteopenia & osteoporosis

A

Primary: post menopausal (most common)

Secondary: presence/ treatment of other disease

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5
Q

Why are women at greater risk for developing osteopenia or osteoporosis

A

Hormones… estrogen plays a big role with bone density

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6
Q

What other hormone disorders can lead to osteopenia / osteoporosis

A

Cushing
Thyroid disorder
Hyperparathyroidism
DM

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7
Q

When is peak bone mass achieved

A

Around age 30

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8
Q

Is osteoporosis / osteopenia a qualitative or quantitative disorder

A

Quantitative… the mechanism to make bone is working fine, just not making enough

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9
Q

What does impaired bone mineralization lead to

A

osteomalacia

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10
Q

What presentations may be seen with osteoporosis / osteopenia

A

Height loss
Kyphosis
*Compression fractures lead to both

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11
Q

What is a fragility fracture

A

Any fracture that results from low energy

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12
Q

What are the results from a DEXA scan

A

T score
Z score

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13
Q

When is a T score used

A

Most patients

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14
Q

When is a Z score used

A

pre-menopausal women
young males

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15
Q

What T score indicated osteoporosis

A

< -2.5

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16
Q

What T score indicates osteopenia

A

-1- -2.5

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17
Q

If a patient has a T score less that -2.5 and has a fracture, what does this mean

A

severe osteoporosis

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18
Q

How often does a patient need to follow up with a T score of -1 to -1.5

A

every 5 years

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19
Q

How often does a patient need a follow up with a T score of -1.5 to -2

A

Every 3-5 years

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20
Q

How often does a patient need to follow up with a T score under -2

A

Every 1-2 years

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21
Q

What is the best measurement of a vitamin D deficiency and why

A

25-hydroxyvitamin D
(25(OH)D)

Measures active vitamin D

22
Q

What is the first line treatment for osteoporosis

A

Risk reduction and prevention

23
Q

Which patients are given pharmacological treatment for osteoporosis

A

T score less than -2.5

Osteopenic patients with a 10yr hip fracture risk of 3+%

Osteopenic patients with a 10yr major hip fx risk of 10+%

Any patient with a fragility fracture

24
Q

What are the pharmacological treatment options for osteoporosis

A

Vitamin D + calcium
Bisphosphonates
Denosumab
Teriperatide
SERMs
Calcitonin

25
Why is Vitamin D + calcium given as an osteoporosis treatment
Adequate levels of both are required for optimal health and medication efficacy... give to ALL patients
26
How much calcium can be absorbed at a time
500mg
27
Why does calcium carbonate need to be taken with food and without any H2 receptors
Requires acid for absorption
28
What is the first line pharmacological option for osteoporosis
Bisphosphonates
29
What is the MOA for bisphosphonates
Inhibit bone resorption via osteoclasts
30
What are some bisphosphonates that can be used
Alendronate Risedronate Zolendronate Ibandronate
31
When is alendronate used
For non-vertebral fx
32
When is ibandronate used
Prevention / treatment of post-menopausal osteoporosis
33
Which patients will be given zolendronate
Those who can't tolerate PO medication
34
What are some side effects of bisphosphonates
Erosive pharyngitis (oral) Osteonecrosis of the jaw (IV) Fever/chills/flushing (IV) Myalgias (IV)
35
How should bisphosphonates be administered
Taken in the am with 8oz of water and 40min before food Remain upright
36
Who do you need to be cautious with in regards to bisphosphonates
CrCl<35 Elderly, diabetics, CKD
37
What is the MOA of denosumab
Inhibits osteoclast maturation (RANK L) inhibitor Reduces vertebral fx > hip fx
38
Which patients is denosumab indicated in
High risk fx with breast CA, prostate CA, hormone deprivation tx
39
What are the side effects of denosumab
Hypocalcemia Hypercholesterolemia Eczema/dermatitis Pancreatitis Osteonecrosis of the jaw
40
What is Teriperatide and what is the MOA
PTH analog Decreases osteoblast apoptosis and promotes production of new bone matrix
41
When is Teriperitide indicated
Treatment for osteoporosis and atypical fractures
42
How long can teriperatide be given
2 years only
43
What is the BBW of teriperatide
Increased risk of osteosarcoma
44
Which patients should NOT be given teriperatide
Pagets Skeletally immature h/o sarcoma significant radiation
45
How do SERMs work
Bind estrogen receptor (protective effects) Will reduce vertebral fx only
46
What is the indication for SERMs
Prevention, not treatment Post-menopausal women
47
What are example of SERMs
Tamoxifen Raloxifene
48
When is tamoxifen indicated
After breast cancer treatment
49
What are the side effects of SERMs
hot flashes thromboembolism reduced LDL reduced breast CA risk
50
What is the MOA of calcitonin
Decrease bone resorption *inhilation
51
What is the indication for calcitonin
Primarily for pain associated with vertebral compression fractures