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Introduction to Heat and Electrotherapy

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Questions and Answers

What is the predominant form of radiation in man's natural environment?

Gamma rays
Radio waves
Ultrasonic waves
Electromagnetic waves (correct)

What is hyperthermia categorized into based on tissue temperature and duration of exposure?

Long-term low-temperature hyperthermia and moderate-temperature hyperthermia (correct)
Long-term high-temperature hyperthermia and short-term low-temperature hyperthermia
Moderate-temperature hyperthermia and short-term high-temperature hyperthermia
Short-term low-temperature hyperthermia and high-temperature hyperthermia

What is the aim of thermal therapy in a targeted region over time?

To modify tissue temperature to compel a desired biological response (correct)
To decrease tissue temperature
To cause a non-biological response
To have a minimal impact on surrounding tissues

Which procedure delivers therapy due to the interstitially placed high-power lasers in the tumor?

Laser-induced thermal therapy (LITT) (C) Signup and view all the answers

What is the quantity of heat needed to raise the temperature of 1 gram of water by 1 degree Celsius?

4.2 joules (B) Signup and view all the answers

What is denaturation primarily associated with?

Alteration of the characteristics of an organic substance, especially protein, by chemical or physical action (D) Signup and view all the answers

What is the heat capacity (C) of a body?

The ratio of the quantity of heat supplied to the corresponding temperature rise (A) Signup and view all the answers

What is specific heat capacity?

The quantity of heat in joules needed to raise the temperature by one degree Celsius (D) Signup and view all the answers

What are electromagnetic waves?

Forms of energy with both electric and magnetic fields (A) Signup and view all the answers

How is photon energy calculated?

E = hf, where h is the Planck constant and f is the frequency of the wave (D) Signup and view all the answers