ultra sound Flashcards
absorption is greatest in?
tissues of greater density
attenuation in different tissue from low to high (5)
blood/fluids
muscle
skin/tendon
cartilage
bone
indication of UA (6)
pain
tissue extensibility
muscle spasm
increase tissue temp
increase blood flow
facilitate healing
contraindication for UA (6)
pregnancy
active bone growth at epiphysis
cancer
tuberculosis
bleeding condition
over vital area
precautions for UA (5)
acute inflammation
plastic or cemented implants
healing fracture
areas of infection
impaired cognition/sensation
laser physiological effects (5)
RNA production
promotes collagen production- through mRNA
modulate inflammation
vasodilation
increase nerve conduction velocities
laser contraindication (5)
pregnancy
cancer
acute injury where hemorrhage is possible
growth plates
over thyroid or endocrine gland