Physical Modalities Test Flashcards
What kind of modality is the ultrasound?
Deep heating modality
In what way is the ultrasound beneficial?
In musculoskeletal pain Soft tissue injury Arthritis Bursitis Frozen Shoulder Tendosivities Scare management.
What does ultrasound do to electrical energy?
It converts to acoustic energy
What is Reverse Piezoelectic Effect?
Crystal inside the sound head responds to alternating electrical current by expanding and contracting, generating sound waves in a range above what the human ear can hear 800,000 - 3,000,000 HZ
True or False. Is ultrasound a longitudinal wave?
True
What is Cavitation?
is the formation of and collapse of gas or vapor-filled cavities in liquids and occurs in relation to the compression and rarefaction cycles of the ultrasound
What is the reason for the ultrasound gel?
To minimize the air between the ultrasound head and skin. The air causes a total reflection of ultrasound
List from the lowest impedance to highest impedance?
Fat Water Blood Muscle Bone
Why do we always want to keep moving the head of the ultrasound?
Because the bone can reflect the energy
It can create a shear wave along the periosteum of the bone.
Interacts with the sound wave traveling from the head.
Creates a summation effect.
Are shear waves painful?
Yes
