1.Long bones have how many types of marrow in them that are used for blood
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production?
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1.
2.
3.
4. : 2 nh
Humans have 206 bones. There are many different types of bones. An nh nh nh nh nh nh nh nh nh nh nh
example of a long bone is the femur. Long bones have spongy tissue inside.
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They have two types of marrow inside of them that is responsible for blood
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production. They are red and yellow marrow.
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2.Osteoporosis diagnosis in children takes into account densitometric crite- ria nh nh nh nh nh nh nh nh nh
and:
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Clinical fracture history A nh nh nh
low blood cell count
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A decrease in bone structure
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Calcifications in the aorta: Clinical fracture history nh nh nh nh nh nh
Based on the pediatric health assessment in children and adolescents,
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diagnosing osteoporosis in children involves using densitometric criteria,
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clinical significant fracture history and low bone mineral density or bone
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mineral content. A clinical fracture history may include: (a) fracture of the lon
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bone in the lower extremity,
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(b) vertebral compression fracture and (c) at least two or more than two long
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bone fractures located in the upper extremities.
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3.Antiresorptive drugs are used to:: Inhibit bone removal. nh nh nh nh nh nh nh
There are two main types of drugs used to treat osteoporosis. They are
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antiresopritve drugs and bone forming drugs. Antiresorptive drugs are used
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to slow down bone loss progression. Bone forming drugs help to increase
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,bone mass. Antiresorptive drugs are used to inhibit bone removal.
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4.Which of the following best describes the rationale for the technologist
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avoiding the adjustment of the bone edges during a dual energy x-ray absorp-
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tiometry scan?: Reproduction may not be possible at follow up
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During a PA spine dual energy x-ray absorptiometry scan, the technologist
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should ensure the bone edges are correct. However, the technologist does
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not want to change the bone edges or adjust the intervertebral markers
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unless he or she has to. If the bone edges or markers are adjusted, it makes it
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hard for reproduction
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at following up. If the bone edges or the intervertebral markers are adjusted,
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the technologist should document these changes for future reference.
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,5.Which ribs are known as floating ribs?: Ribs 11-12. nh nh nh nh nh nh nh nh
There are 206 individual bones in the adult body. The bones in the body are
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arranged in 2 main divisions. The axial skeleton is composed of the skull,
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hyoid, auditory ossicles, ribs, sternum, and vertebral column. The
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appendicular skeleton is composed of the lower limbs, upper limbs, pelvic
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girdle, and pectoral girdle. The ribcage is created by the sternum and ribs.
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There are 12 pairs of ribs. The 7 top ribs are referred to as the true ribs. Ribs 8-
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10 are called false ribs. The bottom 2 ribs are referred to as floating ribs.
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Floating ribs do not have a cartilage attachment to the sternum.
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6.A densitometry printout often contains:: Calculated parameters
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A densitometry printout often contains measured parameters, calculated
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parame- ters, the selected region of interest, the bone mineral density values
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and standard score comparisons. These comparisons are the standard T-
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scores and Z-scores. Some reports include an age-regression graph that nh nh nh nh nh nh nh nh nh
shows the calculated parame- ters and the standard score comparisons
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plotted out on a graphical display for the selected region of interest.
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7.Estrogen is approved as a drug to treat osteoporosis. Estrogen works to nh nh nh nh nh nh nh nh nh nh nh
treat osteoporosis by:: Inhibiting bone resorption
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The general kinds of drugs approved by the Food and Drug Administration
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to treat or prevent osteoporosis include antiresorptive agents and anabolic
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agents.
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Estrogen, along with several bisphosphonates, calcitonin and selective nh nh nh nh nh nh nh
estrogen receptor modulators, are classified as antiresorptive agents. These
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drugs stop bone resorption.
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8.The margin of error between the standardized BMD (sBMD) from two differ- ent
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manufacturers' bone densitometry machines is up to:: 3%The standardized
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BMD (sBMD) is an option on a dual energy x-ray absorptiometry (DXA) the
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technol- ogist can use to calculate bone mineral density when performing a
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PA of the spine or of the total hip.
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The standardized BMD is one way to attempt to make the BMD equal among
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different manufacturers of central DXA devices for comparing bone mineral
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density values. However, the standardized BMD is not an exact equivalent of
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BMD values for the different central devices and the technologist should
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expect between a 1-3% error margin.
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9.An example of a selective estrogen receptor modular drug used for the
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treatment of osteoporosis is:: Raloxifene
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Raloxifene, brand name Evista, is a drug used for treating and preventing nh nh nh nh nh nh nh nh nh nh nh
osteo- porosis. This drug is classified as a selective estrogen receptor
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modulator (SERMs) and works like estrogen, a hormone made in the woman's
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, nh body, to increase bone thickness or density.
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