Ch 71 Osteoporosis Flashcards
What are some health promotion and disease prevention techniques for a client with osteoporosis?
Ensure the clients diet includes adequate amounts of calcium & vit D
Encourage the client to take a calcium supplement with vit D if dietary intake is inadequate (lactose intolerant)
Encourage the client to limit the use of carbonated beverages, which may cause calcium loss.
Encourage the client to expose areas of skin to sun 5-30 min twice a wk./ exposure to sun for any length of time should include wearing sunscreen to avoid a sunburn.
Encourage the client to express pros& cons of hormone replacement therapy postmenopausally with her provider
Encourage the client to engage in weight bearing exercises (walking, lifting weight)
Give a overview of osteoporosis.
Osteoporosis is a common chronic metabolic BONE DISORDER, resulting in low bone density.
Osteoporosis occurs when the rate of bone reabsorption ( osteoclast cells) exceeds the rate of bone tissue and subsequent fractures.
Osteopenia, the precursor to osteoporosis refers to low bone material density relative to the clients age and sex.
Bone mineral density peaks between the ages of 18-30. After peak years, bone density decreases with a significant increase in the rate of loss in post menopausal women due to estrogen loss.
What are the risk factors for developing osteoporosis?
Female gender, family history, & thin lean body build are precursors to low bone density.
A woman over 60 with postmenopausal estrogen deficiency/low levels of calcitonin OR is a male with low testosterone; increased bone loss may occur.
Hx of low calcitonin intake with suboptimal levels of vit D decreases bone formation.
Hx of smoking and high alcohol intake (3 or more drinks per day) causes decreased bone formation & increased bone absorption)
What causes excretion of calcium on the urine?
Excess caffeine consumption
What does inadequate intake of calcium and vitamin D in the diet stimulate?
It stimulates the parathyroid hormone to be released and triggers calcium to be pulled from the bone.
What are more risk factors for developing osteoporosis?
Excess caffeine consumption
Inadequate intake of calcium and vit D
lack of physical activity/ prolonged immobility place the client at risk for,osteoporosis because bones need the stress of wt. bearing activity for bone rebuilding and maintenance
What medical conditions does secondary osteoporosis result from?
Hyperparathyroidism
Long term corticosteroid use (asthma, systemic lupus erythematous)
Long term anticonvulsant med use ( phenytoin [Dilantin] & phenobarbital affect the absorption and metabolism of calcium)
Long term lack of weight bearing ( spinal cord injury)
What are clinical manifestations of osteoporosis?
Reduced height ( postmenopausal)
Acute back pain after lifting or bending(worse with activity, relieved by rest)
Restriction in movement and spinal deformity
Hx of fractures (wrist, femur, thoracic spine)
Thoracic ( kyphosis) of the Dorsal spine
Pain upon palatial over affected area
What laboratory test; tests the diagnosis of osteoporosis?
Serum calcium, Vit D, phosphorus, & alkaline phosphatase levels are drawn to rule out other metabolic bone diseases ( Paget’s disease or osteomalacia)
Thyroid tests and serum protein level also are checked to rule out hyperthyroidism
What diagnostic procedures diagnose osteoporosis?
Radiographs
Radiographs of the spine and long bones reveal low bone density and fractures.
Dual X- Ray absorptiometry (DXA)
Peripheral quantitative ultrasound ( pQUS)
Quantatative computed tomography (QCT)
What is DXA used 4?
A DXA scan is used to screen for early changes in bone density and is usually done on the hip or spine.
A peripheral DXA scan is used to assess the bone density of the heel, forearm, or finger.
DXA uses 2 beams of radiation. Findings are analyzed by a computer and interpreted by a radiologist. Clients receive a score that relates their amount of bone density to other ppl in their age group and gender.
The pt will lie on table while a scan of the selected area is done.
What is peripheral quantative ultrasound?
pQUS is an ultrasound usually of the heel, tibia, & patella.
pQUS mis an inexpensive, portable, and low risk method to determine osteoporosis and assessing for risk of fracture, especially in men over age 70 years.
What is quantative computed tomography used for?
A QCT is used to measure bone density, especially in the vertebral column.
What should the nurse educate the client on regarding bone formation?
Instruct the client on the need for adequate amounts of protein, magnesium, vit K, and other trace minerals needed for bone formation?
What meds can slow or prevent osteoporosis?
Meds such as calcium and vit D can slow, or prevent osteoporosis. A combination of several of these meds may b used in place of just one.