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Physical Therapy Modalities

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Questions and Answers

What is the purpose of using a towel when using shortwave diathermy?

To protect the machine from moisture

To enhance the therapeutic effect

To cool down the machine

To absorb perspiration and avoid localized heat concentration (correct)

What is the frequency range of therapeutic ultrasound?

12 cm

2,456 MHz

915 MHz

0.8-1.0 MHz (correct)

What is the effect of ultrasonics on tissues?

Only electrical stimulation

Micromassage and heat production (correct)

Only heat production

Only microwave radiation

What is the purpose of electrical stimulation in electrotherapy?

To inhibit pain impulses Signup and view all the answers

What is the frequency of microwave diathermy?

2,456 MHz Signup and view all the answers

What is the primary purpose of using heat in physical therapy?

To relieve pain and decrease muscle spasm Signup and view all the answers

At what depth from the surface of the skin does superficial heat have the greatest effect?

0.5 cm or less Signup and view all the answers

What is the frequency of the high-frequency alternating current used in shortwave diathermy?

27.12 MHz Signup and view all the answers

What is the role of the metal pads in the condensor method of shortwave diathermy?

To act as two plates of a capacitor Signup and view all the answers

What type of energy is used in ultrasound?

High-frequency sound waves Signup and view all the answers