Ultrasound Flashcards
(13 cards)
Intensity is too high for ultrasound patient will feel?
Dull, aching pain
Contact is not good during ultrasound patient will feel?
Prickling, tingling feeling,
Treatment size for ultrasound
2-6 times the sound head
Go deep the diverge.
1 MHz
Diverge right away.
3 MHz
Spreads out and weakens.
Diverge and attenuate.
Micromassage (decrease pain), vasoconstriction or dilation (decreases pain), and increase membrane permeability (decreases edema, helps with healing).
Non-thermal effects of ultrasound
Ultrasound waves are greater than _____.
20,000 Hertz
Electrical fields
Capacitance
Magnetic fields
Inductance
The ratio of peak power to the average power in the ultrasound beam measured I any cross-sectional pane.
Beam Nonuniformity Ratio (BNR)
Effective radiating area
ERA
You won’t get patient symptoms with ____ ultrasound setting?
Non-thermal