ultra sound Flashcards

1
Q

absorption is greatest in?

A

tissues of greater density

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2
Q

attenuation in different tissue from low to high (5)

A

blood/fluids
muscle
skin/tendon
cartilage
bone

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3
Q

indication of UA (6)

A

pain
tissue extensibility
muscle spasm
increase tissue temp
increase blood flow
facilitate healing

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4
Q

contraindication for UA (6)

A

pregnancy
active bone growth at epiphysis
cancer
tuberculosis
bleeding condition
over vital area

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5
Q

precautions for UA (5)

A

acute inflammation
plastic or cemented implants
healing fracture
areas of infection
impaired cognition/sensation

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6
Q

laser physiological effects (5)

A

RNA production
promotes collagen production- through mRNA
modulate inflammation
vasodilation
increase nerve conduction velocities

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7
Q

laser contraindication (5)

A

pregnancy
cancer
acute injury where hemorrhage is possible
growth plates
over thyroid or endocrine gland

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