Osteoporosis Flashcards

1
Q

Most Common Long-Term Meds Associated with OP

A

-Glucocorticoids
-Gonadotropin-releasing hormone agonists
-Cancer chemotherapy drugs
-Aromatase inhibitors (anastrozole, exemestane, letrozole)
-Anticonvulsant therapy
-Anticoagulants (> 6 months UFH/LMWH)
AAAGGC

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2
Q

Clinical Presentation

A

Subjective
-Vertebral fracture (back pain radiating to leg)
-Non-vertebral fracture (severe pain, swelling, and reduced mobility
-Depression, fear, low self-esteem d/t limitations or deformities

Objective
-Decreasing height (> 1.5 inch d/t collapsing vertebrae)
-Dowager’s Hump (curved back, “kyphosis”)
-Fracture with minimal trauma

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3
Q

Screening Recommendations

A

-Women 65+, Men 70+
-All postmenopausal women 50+
-Adults who fracture at 50
-Adults with a condition or taking med associated with low bone mass

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4
Q

Non-Pharm TX

A

-Sunlight exposure
-Smoking cessation
-Alcohol moderation
-Balanced diet
-Weight bearing aerobic exercise

Fall Prevention Strategies
-Low heeled, sturdy shoes
-Hip protectors
-Remove safety hazards in home
-Avoid meds that can impair coordination

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5
Q

Calcium Recommended Daily Intake

A

51-70 =
-Female: 1200
-Male: 1000

71+
-Female/Male: 1200

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6
Q

Ca Supplements

A

Increases BMD but fracture prevention only if w/ vitamin D

Doses > 500-600 should be BID/TID (divided)

Citrate preferred for older adults (better abs)

AE: flatulence, constipation

Do not exceed > 1200-1500/day (kidney stones/CVD)

DDI: separate by 2+ hours
-Tetra, azithro, fluoroquin, bisphos, azoles, iron (IF TABA)

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7
Q

Calcium Carbonate

A

-Generally preferred salt
-Take with meals or juice
-Also acts as antacid

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8
Q

Calcium Citrate

A

-Absorption not affected by food/acid
-Less constipating

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9
Q

Vitamin D Recommended Intake

A

51-70 =
-Female/Male: 600 IU, 15 mcg

70+ =
-Female/Male: 800 IU, 20 mcg

Recommend sunlight 5-15 minutes/day

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10
Q

Vitamin D Replacement/Treatment

A
  • 50,000 IU PO qweek x 8-12 weeks;
  • Then once monthly or 1000-2000 IU PO daily thereafter

Goal: >= 30 for 25 OHD

AE: hypercalcemia, hypercalciuria

DDI:
* Phenytoin, barbiturates, CBZ, rifampin increase metabolism (PBCR)
* Cholestyramine, colestipol, orlistat, and mineral oil decrease absorption (MOCC)

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11
Q

Pharmacologic TX should be considered for:

A
  • Postmenopausal women/men older than 50years who have a low-trauma hip or vertebral fracture
  • T-score ≤ −2.5 at the femoral neck, total hip, or spine (osteoporosis)
  • T-score between −1.0 and −2.5 (osteopenia) and a FRAX 10- year probability of major osteoporosis-related fracture ≥ 20% or hip fracture ≥ 3%
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12
Q

Pharmacologic Treatment Recommendations

A

OP
1. Bisphosphonates
2. Denosumab (if CI/AE)

Post-meno with OP
-Romosozumab or Teriparatide followed by bisphosphonate

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13
Q

Aldendronate: Bisphosphonates

A

Do not use if CrCl ≤ 35 mL/min

Fosamax 70 mg/w or 10 mg/day
*for prevention: half of doses

or 1 bottle of 70 mg oral solution weekly

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14
Q

Risedronate: Bisphosphonates

A

Do not use if CrCl ≤ 30 mL/min

TX/Prevention of post-meno OP
* 150 mg monthly (75 mg tablets taken 2 days in a row)
* 35 mg tablet weekly

TX of men with OP
* 35 mg tablet once weekly

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15
Q

Ibandronate: Bisphosphonates

A

Do not use if CrCl ≤ 30 mL/min

TX of postmenopausal OP
* 150 mg tablet monthly (on same day)
* 3 mg IV every 3 months (treatment only)

Prevention
* 150 mg tablet monthly (on same day)

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16
Q

Zoledronic Acid/Zoledronate

A

Do not use if CrCl ≤ 35mL/min

5 mg IV once yearly (for treatment) or 5 mg IV every 2 years (for prevention)

17
Q

Bisphosphonates – Common ADR’s

A

Oral
-GI (abdominal pain, dyspepsia, esophagitis, ulcers, esophageal erosions)
-MSK/bone pain

For IV
-Ibandronate: myalgias, cramps, limb pain
-Zol acid: hypocalcemia (CI), flu-like, A fib, arthritis, arthralgias, headache

Rare
-Osteonecrosis of the Jaw
-Atypical hip fractures

18
Q

Bisphosphonates – Additional Information for IV

A

Drug interactions
* Aminoglycosides
* Loop diuretics
* NSAIDs or other nephrotoxic drugs

Precaution: renal impairment, hypocalcemia

19
Q

Bisphosphonates – Patient Education

A

-Avoid NSAIDs/aspirin
-Dental exam 2x/year
-Take 30 min+ before food with water
-Do not chew on tablet
-DC if trouble/pain swallowing or chest pain

20
Q

Denosumab (Prolia®)

A

60 mg SQ every 6 months

AE: fedcrp ofuc
-Flatulence, dermatitis, eczema, rash
-Pain in back, extremities, MSK
-Increased cholesterol
-RARE: hypocalcemia, UTIs, ONJ, femur fracture

21
Q

Teriparatide (Forteo®)

A

20 mcg SQ daily in thigh/abdomen
-store in fridge, once open = 28 day shelf life

AE: TERI NOD CC
-Nausea, dizziness (low BP)
-Leg cramps and muscle spasms
-Hypercalcemia

BBW: OSTEOSARCOMA (rats) ps mcm
-Avoid if Paget’s disease, previous skeletal radiation, bone metastases or skeletal malignancy, hypercalcemia

Pt Ed: remove needle after each use, clear solution

22
Q

Abaloparatide (Tymlos®)

A

80 mcg SQ daily, store in fridge, 30 days RT

AE: able to hhopn
* Orthostatic hypotension
* Palpitations
* Hypercalcemia
* Nausea and headaches

23
Q

Romosozumab (Evenity®)

A

210 mg SQ

AE: hia hoa
-Arthralgias, headache, and injection site reactions
-Hypersensitivity reactions
-ONJ and atypical fractures

BBW: Increased MACE
-DC if MI/CVA occurs, don’t start if MI/CVA in 1 yr

CI: hypocalcemia, CKD/dialysis

24
Q

Raloxifene (Evista®)

A

60 mg PO QD

Useful for: hens b
-younger post-meno and low DVT risk
-CI to other meds
-high risk of breast cancer

AE: hot flashes, night sweats, edema, spasms

BBW: blood clots (CI in VTE)

DDI: levo, warfarin

25
Q

Glucocorticoid-Induced Osteoporosis (GIO)

A
  • Calcium 1200-1500 mg daily + vitamin D3 800-1200 IU daily
  • BMD/DXA at therapy onset and every 6-12 months as needed
  • Try first: alendronate, risedronate, and zoledronic acid
  • If bisphosphonates are intolerable or there are contraindications: teriparatide or denosumab