Podcast
Questions and Answers
Diathermy is used for which of the following purposes?
Diathermy is used for which of the following purposes?
Which surgical functions can be performed using a diathermy machine?
Which surgical functions can be performed using a diathermy machine?
What types of therapeutic diathermy machines are available?
What types of therapeutic diathermy machines are available?
Which diathermy machine is best suited for deep tissue healing?
Which diathermy machine is best suited for deep tissue healing?
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What is the typical frequency range used in ultrasound diathermy?
What is the typical frequency range used in ultrasound diathermy?
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Which safety precaution is essential when using diathermy?
Which safety precaution is essential when using diathermy?
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A heat wave diathermy machine has a maximum power output of $500$ W and a maximum voltage of $4000$ V. What is the highest resistance this machine can handle?
A heat wave diathermy machine has a maximum power output of $500$ W and a maximum voltage of $4000$ V. What is the highest resistance this machine can handle?
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Which of the following units is used to measure the biological damage caused by radiation?
Which of the following units is used to measure the biological damage caused by radiation?
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The stated radiation frequency of 693 per second is equivalent to which of the following values?
The stated radiation frequency of 693 per second is equivalent to which of the following values?
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If $I_0$ is the initial intensity and $I$ is the emerging intensity, what energy ($I_0$) must radiation have to image a 5 cm thick bone covered by 2 cm of skin on both sides, given that $I = 200 \text{MeV}$?
If $I_0$ is the initial intensity and $I$ is the emerging intensity, what energy ($I_0$) must radiation have to image a 5 cm thick bone covered by 2 cm of skin on both sides, given that $I = 200 \text{MeV}$?
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How are the heating effects achieved in induction field diathermy?
How are the heating effects achieved in induction field diathermy?
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Which characteristic is associated with tissues having low dielectric constant and conductivity?
Which characteristic is associated with tissues having low dielectric constant and conductivity?
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What happens to an electric field when it encounters a substance with a high dielectric constant?
What happens to an electric field when it encounters a substance with a high dielectric constant?
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What is the process of destroying cancer cells using radiation called?
What is the process of destroying cancer cells using radiation called?
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Which pair of scattering effects is most important for diagnostic purposes in medical imaging?
Which pair of scattering effects is most important for diagnostic purposes in medical imaging?
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Which technique uses an electric field to separate charged particles?
Which technique uses an electric field to separate charged particles?
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The speed of ion migration in an electric field is dependent on what factors?
The speed of ion migration in an electric field is dependent on what factors?
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Which of the following does NOT influence electrophoretic mobility?
Which of the following does NOT influence electrophoretic mobility?
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Flashcards
Purposes of Diathermy
Purposes of Diathermy
Diathermy is primarily used for surgical and therapeutic purposes.
Surgical Functions of Diathermy
Surgical Functions of Diathermy
The surgical functions performed by diathermy include cutting, coagulation, and fulguration.
Types of Therapeutic Diathermy Machines
Types of Therapeutic Diathermy Machines
Therapeutic diathermy machines include short wave, microwave, and ultrasound types.
Diathermy for Deep Tissue Healing
Diathermy for Deep Tissue Healing
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Ultrasound Diathermy Frequency
Ultrasound Diathermy Frequency
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Diathermy Safety Precaution
Diathermy Safety Precaution
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Units of Radioactivity
Units of Radioactivity
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Sign of Cerebral Failure Dose
Sign of Cerebral Failure Dose
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Induction field diathermy
Induction field diathermy
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Dielectric constant & conductivity
Dielectric constant & conductivity
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Radiotherapy
Radiotherapy
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Types of scattering important for diagnostics
Types of scattering important for diagnostics
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Electrophoresis
Electrophoresis
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Electrophoretic mobility
Electrophoretic mobility
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Factors influencing electrophoretic mobility
Factors influencing electrophoretic mobility
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Electrophoresis apparatus components
Electrophoresis apparatus components
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Types of electrophoresis
Types of electrophoresis
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Migration of biomolecules
Migration of biomolecules
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Study Notes
Diathermy Principles and Applications
- Diathermy is used for surgical and therapeutic purposes.
- Diathermy machines perform cutting, coagulation, and fulguration.
- Types of diathermy machines include short wave, microwave, and ultrasound.
- Short wave diathermy is effective for deep tissue healing.
- Ultrasound diathermy uses sound frequencies in the range of 0.7-3.3 MHz.
- Safety precautions for diathermy include using grounding pads.
- Heat wave diathermy machines have a maximum power output of 500W and a maximum voltage of 4000V. The maximum resistance that the machine can handle is 32 K ohms.
Radiation and Biological Effects
- Units to measure biological damage from radiation include Rad, Rem, and Roentgen.
- Rem measures radiation absorbed dose modified by its biological effect.
- Cerebral system failure signs can appear above 200-600 rad of radiation.
- 1 Rad is roughly equal to 1 Rem.
- Units of radioactivity include Curie (Ci) and Becquerel (Bq). 1 Ci = 3.7 x 1010 Bq.
- If a hypothetical radioactive material has 20,000 active photons and a decay constant of 4.916 x 10-17 per second, the amount remaining in 100 years can be calculated.
- A half-life of 100 milliseconds corresponds to a decay constant of 6.93 per second.
Imaging and Radiation
- Factors influencing radiation energy needed to image bone include bone and skin thickness and emerging X-Ray intensity.
- Induction field diathermy heats tissues by inducing electric currents in them.
Dielectric Properties and Electrophoresis
- Substances with high dielectric constant and conductivity include moist skin, muscle, and blood.
- Substances with low dielectric constant and conductivity include bone, ligaments, and fat.
- Electric fields converge on substances with high dielectric constant.
- Radiotherapy is the use of radiation to destroy cancer cells.
- Significant scattering mechanisms for diagnostic purposes are Compton and photoelectric effects.
- Electrophoresis separates charged particles using an electric field in a medium.
- Electrophoresis methods include SDS-PAGE, affinity electrophoresis, and electrofocusing.
- Electrophoretic mobility (µ) is calculated as V/E (velocity/electric field strength).
- Factors influencing electrophoretic mobility include molecular weight, shape, and charge.
- Electrophoresis is used to separate proteins, amino acids, and nucleic acids.
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Description
Test your knowledge on the principles and applications of diathermy as well as the biological effects of radiation. This quiz covers topics ranging from diathermy machines and their functions to units of radiation measurement and safety precautions. Perfect for students in the medical and scientific fields.
