FNDN Final Exam - Ultrasound Parameters + Nagi Disablement Model

What is power in ultrasound?

the total amount of energy being produced by the unit in watts

What is intensity in ultrasound?

the strength of the sound wave at a given location

What is SAI in ultrasound?

the amount of power being delivered per cm2 squared

Which frequency of ultrasound retains heat longer?

1MHz

What is duty cycle of ultrasound?

the percentage of time the ultrasonic energy is being emitted from the sound head

What are the 2 duty cycles?

pulsed and continuous

What is pulse duty cycle used for?

to heal acute injury

What is continuous duty cycle used for?

to heat chronic injury

What does a pulsed duty cycle do?

reduces thermal effects and increases non-thermal effects

What does a continuous duty cycle do?

effectively heats tissues 5cm or more deep

What are the 4 dimensions of the Nagi Disablement Model?

active pathology, impairment, functional limitation, disability

What level of disablement is associated with active pathology in the Nagi disablement model?

cellular

What level of disablement is associated with impairment in the Nagi disablement model?

body systems

What level of disablement is associated with functional limitations in the Nagi disablement model?

whole person

What level of disablement is associated with disability in the Nagi disablement model?

persons relation to society

What are the 4 phases of rehab?

acte, subacute, dynamic, sport specific