Podcast
Questions and Answers
What is the frequency range for microwaves?
What is the frequency range for microwaves?
- 11 m
- 0.5 - 2450 MHz (correct)
- 27 MHz
- 0.5 - 50 MHz
Which type of tissues or organs better absorb electromagnetic energy due to high water content?
Which type of tissues or organs better absorb electromagnetic energy due to high water content?
- Fat tissues
- Hard tissues and organs
- Soft tissues and organs (correct)
- Muscles
What is the wavelength for shortwave diathermy (SWD)?
What is the wavelength for shortwave diathermy (SWD)?
- 50 Hz
- 11 m (correct)
- 27 MHz
- 0.5 - 2450 MHz
What is the main effect of high-frequency currents on the body?
What is the main effect of high-frequency currents on the body?
Where is high-frequency heat produced inside the body?
Where is high-frequency heat produced inside the body?
What is the action mechanism for high-frequency heat production?
What is the action mechanism for high-frequency heat production?
Which type of SWD application uses rigid plate electrodes and has strong electrical and weak magnetic energy absorption?
Which type of SWD application uses rigid plate electrodes and has strong electrical and weak magnetic energy absorption?
Which type of SWD application uses inductive coil applicators and has strong magnetic fields?
Which type of SWD application uses inductive coil applicators and has strong magnetic fields?
Which type of SWD application can heat high impedance tissues more effectively by using electric fields perpendicular to tissues?
Which type of SWD application can heat high impedance tissues more effectively by using electric fields perpendicular to tissues?
Which type of SWD application is more effective for low impedance tissues like liquids by using parallel electric fields?
Which type of SWD application is more effective for low impedance tissues like liquids by using parallel electric fields?
What is the path of least resistance followed in coplanar SWD applications?
What is the path of least resistance followed in coplanar SWD applications?
What is an absolute contraindication for SWD applications?
What is an absolute contraindication for SWD applications?
What is the recommended minimum distance for placing high-frequency devices in separate rooms?
What is the recommended minimum distance for placing high-frequency devices in separate rooms?
Where should the control console be placed in relation to the room for electrotherapy devices?
Where should the control console be placed in relation to the room for electrotherapy devices?
What is a safety precaution for therapists applying electromagnetic radiation from shortwave devices with capacitor-type electrodes?
What is a safety precaution for therapists applying electromagnetic radiation from shortwave devices with capacitor-type electrodes?
What should be avoided in the placement of electrotherapy devices in the working area?
What should be avoided in the placement of electrotherapy devices in the working area?
What is a recommended material for furniture in the electrotherapy area to minimize radiomagnetic fields?
What is a recommended material for furniture in the electrotherapy area to minimize radiomagnetic fields?
What is a precaution for maternity protection regarding high-frequency applications?
What is a precaution for maternity protection regarding high-frequency applications?
What characterizes High Frequency due to its effect inside the human body?
What characterizes High Frequency due to its effect inside the human body?
Which type of application produces effects without the tissue’s temperature increase?
Which type of application produces effects without the tissue’s temperature increase?
Study Notes
- SWD applications come in two main types: capacitive and inductive
- Capacitive applications use rigid plate electrodes and have strong electrical and weak magnetic energy absorption
- Capacitive applications can be divided into transversal/contraplanar, longitudinal, and coplanar
- Transversal/contraplanar applications use electric fields perpendicular to tissues and can heat high impedance tissues more effectively
- Longitudinal applications use parallel electric fields and are more effective for low impedance tissues like liquids
- Coplanar applications place both electrodes on the same side of the limb and follow the path of least resistance through blood vessels
- Inductive applications use inductive coil applicators and have strong magnetic fields
- SWD applications can be used for pain control, wound healing, nerve healing, and bone healing
- SWD applications can also be used for circulatory disorders, inflammatory processes, and post-traumatic disorders
- Precautions for SWD applications include avoiding heat burns, contact to the skin, skin hypersensitivity, and areas of impaired circulation
- Absolute contraindications include malignant tumors, pacemakers, pregnancy, tuberculosis, and chronic rheumatoid arthritis in the acute phase
- Technical differences between SWD and microwave diathermy include the production mechanism, wavelength, and frequency
- Clinical differences between SWD and microwave diathermy include the depth of penetration, application possibilities, and ability to use pulsed applications.
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Description
Test your knowledge of high-frequency currents, shortwave diathermy, microwaves, dosimetry, indications, precautions, contraindications, differences between microwave and shortwave diathermy, and security and protection using high frequency devices.
