Lab Practical D (Ultrasound/Diathermy) Flashcards
What are 6 indications for ultrasound?
Increase collagen fibers/synthesis Increase blood flow Increase cell metabolism Decrease joint stiffness Decrease muscle spasm Enhance healing
What are the 1st 6 contraindications for Ultrasound?
Malignancy Hemorrhage Ischemia Thrombus Infection Gonads
What are the 2nd 5 contraindications for Ultrasound?
Eye Abdominopelvic area of pregos Spinal cord Implants Unknown etiology
What are 2 precautions for Ultrasound?
Bony prominences
Epiphyseal plate
What affect will a 1* C increase in temp have on metabolic activity?
Increase in metabolic activity
What affect will a 2-3 C increase in temp have on:
- -Muscle spasm
- -blood flow
- -chronic inflammation
Reduction in muscle spasm
Increase in blood flow
Reduction of chronic inflammation
What affect will a 4* C increase in temp have on collagen properties?
Alter viscoelastic properties
Which form of Ultrasound produces heat (pulsed or continuous)?
Continuous = heat
What are the duty cycles for both acute and chronic treatments?
Acute = 50% Chronic = 100%
What frequency is used for deep or superficial tissues?
Deepest tissue = 1 MHz
Superficial tissue = 3.3 MHz
What is an indication for combo (ultrasound/premod)?
Premod for pain relief in combo w/ pulsed Ultrasound for healing
Why would you apply thermotherapy w/ Ultrasound in combo w/ premod for chronic tendonopathies such as lateral epicondylitis and Achilles tendonosis?
Helps decrease pain and increase circulation
When doing combo be sure the lead is plugged into what channel? And an electrode is connected to what connector.
Channel 2 Black connector (red is "dead")
What EPA is used to increase acute healing?
Pulsed 3.3 MHz; 50% duty cycle for 10 minutes
What EPA is used for decreasing chronic pain?
Continuous 1 MHz; 100% duty cycle
