Diathermy Flashcards
What is Diathermy
Use high frequency electromagnetic energy to create heat in body tissue (deep healing)
What is the most common type of diathermy unit
Shortwave Diathermy
What frequency is used in microwave diathermy and is regulated by the FCC
2450 MHz
How does Diathermy produce heat
Rotation and Oscillation of molecules and ions produce heat
What type of technique describes capacitor electrodes produce electrical field
Capacitive technique
What type of technique describes induction electrodes producing a magnetic field
Inductive technique
What type of tissue is heated the most when using capacitive technique
Fat
Where would you use capacitive technique on a patient
areas with low subQ fat (knee, Shoulder, Foot)
What type of tissue is heated the most when using inductive technique
Muscle
Tendon
Joint
(high electrolyte concentration)
What law describes dose vs responce
Arndt-Schultz law
What law describes absorption vs therapeutic effect
Grotthuss-Draper law
What law describes dose vs divergence (distance)
Inverse square law
What law describes how energy is reduced if the angle is increased
Cosine law
What is the most common type of Diathermy treatement
Pulsed short wave
What is Diathermy good for
Osteoarthritis
Neck/back pain
Ankle pain
Dermal wounds
