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Questions and Answers
What is the primary mechanism of heating in induction field diathermy?
What is the primary mechanism of heating in induction field diathermy?
Which of the following environments is characterized by a low dielectric constant and conductivity?
Which of the following environments is characterized by a low dielectric constant and conductivity?
Which technique is commonly used to separate charged particles through an electric field?
Which technique is commonly used to separate charged particles through an electric field?
What effect does a high dielectric constant have on an electric field?
What effect does a high dielectric constant have on an electric field?
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Which pair of scattering is considered important for diagnostic purposes?
Which pair of scattering is considered important for diagnostic purposes?
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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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The speed of migration of ions in an electric field depends on which factors?
The speed of migration of ions in an electric field depends on which factors?
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Which component is NOT part of the electrophoresis apparatus?
Which component is NOT part of the electrophoresis apparatus?
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In which lead would you typically observe a biphasic P wave?
In which lead would you typically observe a biphasic P wave?
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Where do you typically see a deep S wave in the QRS complex?
Where do you typically see a deep S wave in the QRS complex?
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In which lead(s) would you expect to observe a tall R wave?
In which lead(s) would you expect to observe a tall R wave?
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What leads indicate a transition zone with a biphasic complex in the QRS complex?
What leads indicate a transition zone with a biphasic complex in the QRS complex?
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In what leads would you observe R wave progression?
In what leads would you observe R wave progression?
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What portion of the EKG is referred to as the 'plateau phase'?
What portion of the EKG is referred to as the 'plateau phase'?
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Which segment's alteration is commonly indicative of serious pathology?
Which segment's alteration is commonly indicative of serious pathology?
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What does the corrected QT interval (QTc) need to be less than in relation to the R-R interval?
What does the corrected QT interval (QTc) need to be less than in relation to the R-R interval?
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What does the acronym LASER stand for?
What does the acronym LASER stand for?
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Which scientist introduced the concept of stimulated emission?
Which scientist introduced the concept of stimulated emission?
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Which color of light has the shortest wavelength?
Which color of light has the shortest wavelength?
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What kind of laser is predominantly used in CD and DVD players?
What kind of laser is predominantly used in CD and DVD players?
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What property of laser light is utilized to measure strain in roadways?
What property of laser light is utilized to measure strain in roadways?
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Why are lasers favored for cutting materials?
Why are lasers favored for cutting materials?
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What type of laser is most commonly used in industrial materials processing?
What type of laser is most commonly used in industrial materials processing?
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What is the primary output of an Eximer laser?
What is the primary output of an Eximer laser?
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What type of laser could cause skin cancer if not used properly?
What type of laser could cause skin cancer if not used properly?
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The image formed by the retina of the human eye is:
The image formed by the retina of the human eye is:
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The change in focal length of the human eye is caused due to:
The change in focal length of the human eye is caused due to:
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The least distance of distinct vision for a young adult with normal vision is:
The least distance of distinct vision for a young adult with normal vision is:
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The persistence of vision for the human eye is:
The persistence of vision for the human eye is:
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The light-sensitive cell present on the retina that is sensitive to light intensity is:
The light-sensitive cell present on the retina that is sensitive to light intensity is:
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The part of the eye which refracts light entering from external objects is:
The part of the eye which refracts light entering from external objects is:
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Human eye acts like a:
Human eye acts like a:
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Vasovagal syncope is a reflex of what type of response?
Vasovagal syncope is a reflex of what type of response?
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What is the primary purpose of intensifier screens in radiography?
What is the primary purpose of intensifier screens in radiography?
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Contrast media used in imaging consists of elements with which atomic property?
Contrast media used in imaging consists of elements with which atomic property?
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What type of filter is employed to reduce hum noise in an ECG circuit?
What type of filter is employed to reduce hum noise in an ECG circuit?
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What is the frequency range of an ECG?
What is the frequency range of an ECG?
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Which membrane is commonly used for hemodialysis?
Which membrane is commonly used for hemodialysis?
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What is the ideal ratio of the aperture length to the diameter of the aperture for optimal performance?
What is the ideal ratio of the aperture length to the diameter of the aperture for optimal performance?
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An instrumentational amplifier should have which of the following properties?
An instrumentational amplifier should have which of the following properties?
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What disciplines are combined in the curriculum for 560001 'Medicine' program?
What disciplines are combined in the curriculum for 560001 'Medicine' program?
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What is the total number of hours dedicated to Medical Biophysics in the curriculum?
What is the total number of hours dedicated to Medical Biophysics in the curriculum?
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Which of the following components constitutes the largest portion of the Medical Biophysics course?
Which of the following components constitutes the largest portion of the Medical Biophysics course?
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For which of the following functions is diathermy primarily used?
For which of the following functions is diathermy primarily used?
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Which surgical functions can be performed by a diathermy machine?
Which surgical functions can be performed by a diathermy machine?
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What type of knowledge assessment is included in the Medical Biophysics course?
What type of knowledge assessment is included in the Medical Biophysics course?
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Which professionals contributed to the preparation of the test item fund?
Which professionals contributed to the preparation of the test item fund?
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Which semester does the Medical Biophysics course span?
Which semester does the Medical Biophysics course span?
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What is the purpose of the 'Fund of Test Tasks' in the curriculum?
What is the purpose of the 'Fund of Test Tasks' in the curriculum?
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What is the contribution ratio of lectures to practical sessions in the Medical Biophysics course?
What is the contribution ratio of lectures to practical sessions in the Medical Biophysics course?
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Study Notes
Summary of Diathermy and other Medical Imaging Modalities
- Diathermy is used for surgical procedures such as cutting, coagulation, and fulguration.
- Types of diathermy machines include short wave, microwave, and ultrasound.
- Ultrasound diathermy uses sound waves with a frequency range of 0.7-3.3 MHz.
- Diathermy precautions include using soft pillows for patient comfort, grounding, and sufficient fluid intake.
- Heat wave diathermy can withstand resistances of 32,000 ohms at a power of 500W and maximum voltage of 4,000 V.
- Biological damage from radiation is measured in units like Curie, Rem, and Rad.
- Beyond 200-600 rad dose, cerebral systems show signs of failure.
- The relation between 1 Rad, 1 Rem, and 1 R is explained in question 10 and 11 of the document.
Summary of Electrophoresis and its Applications
- Electrophoresis is a technique used to separate charged particles in an electric field.
- Types mentioned are SDS PAGE, Affinity Electrophoresis, and Electro focusing
- Electrophoretic Mobility (u) involves the factors like magnitude of charge, shape, molecules, and mass.
- Electrophoresis is used in separating proteins, DNA fragments based on size and charge.
Summary of Ultrasound
- Ultrasound is sound with frequencies above 20,000 Hz, not audible to humans.
- Uses include diagnostic purposes, such as detecting faults in metal sheets, imaging marine depths, and detecting earthquakes.
- Ultrasound travels through seawater at 1300 ms-1.
- The time taken for the return of the ultrasound reflected from seabed is 3.42 s, and distance of seabed will be 2600m.
- Ultrasound is used to image soft tissues and organs.
- Piezoelectric crystals produce ultrasound waves.
Summary of Radiotherapy and other Medical Imaging Techniques
- Radiotherapy is the process of using radiation to destroy cancer cells.
- Other procedures such as radiotherapy and different methods of imaging use different techniques and machines.
Summary of Medical Imaging Parameters and Other Information
- The parameters spatial-peak, temporal-average, and pulse-average must be considered when expressing values for ultrasound intensity
- The lowest rate of ultrasound absorption occurs in air.
- Ultrasound imaging techniques and equipment.
- The goal of automated exposure compensation is to generate consistent and quality images related to patient size differences.
- The major determinants of temporal resolution in computed tomography (CT) is Gantry Rotation Speed.
- Various Imaging modalities. For example, PET scan, SPECT, CT scan, MRI, etc.
- Correct placement and use of medical imaging equipment.
- Various physical measurements of sound, radiation, etc. are related to each other.
- Factors affecting the rate of the migration of biomolecules in an electrophoresis setup.
Other Information about Radiation, Medical Imaging, and Biological Damage
- Units of radiation and their relations are described along with questions and answers.
- The relation between the units 1 Rad, 1 Rem, and 1 R.
- Different medical imaging modalities are briefly explained, such as ultrasound and electrophoresis, alongside questions about them.
- Various technical aspects and properties related to medical equipment, e.g. X-ray and other related systems and parameters.
- Procedures used, parameters, and calculations on medical equipment, including related questions and answers.
- Questions about medical equipment and methods of measurement and their effect.
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Description
Test your knowledge on cardiovascular physiology and related medical procedures with this quiz. Covering topics such as electric fields, electrophoresis, and EKG interpretations, this set of questions will challenge your understanding of essential concepts. Prepare to dive deep into the mechanisms and techniques used in medical diagnostics and treatments.
