Ultrasound Flashcards
1
Q
What are the two effects of ultra sound
A
-thermal effects
nonthermal effects
2
Q
Thermal effects of ultrasound
A
- continuous mode
- increase tissue temperature
- increase metabolic rate and circulation
- decrease pain and spasm
3
Q
Non thermal effects of ultrasound
A
- pulse mode
- mechanical effects of citation
- increase skin and cellular permeability
- increase macrophage response and protein synthesis
4
Q
Indications of ultrasound
A
- soft tissue shortening
- pain control
- dermal ulcers
- tenons and ligament injuries
5
Q
Phonophoresis
A
- transcutaneous drug delivery
- using sound waves to enhance delivery of medications through the skin
- primarily corticosteroid/anti inflammatory medications
6
Q
contraindications of ultrasound
A
- Malignant tumor
- pregnancy
- CNS (such as over where a laminectomy occurred)
- joint cement
- plastic components
- pacemaker: region of machine
- thrombophlebitis
- eyes
-reproductive organs
7
Q
Precautions of ultrasound
A
- acute inflammation
- epiphyseal plates
- fractures
- breast implants
8
Q
Adverse effects of ultrasound
A
- burn
- standing waves = pain
- cross contamination and infection
9
Q
What are the parameters of Ultrasound
A
- frequency: MHz
- duty cycle: continuous vs pulsed
- intensity: 0-5 to 1.5 w/cm2
- duration: 5-10 minutes for each treatment area that is 2x the size of the ERA of transducer
