General Radiology And Veterinary Quiz

1. X rays were discovered in 1895 by W. C. Roentgen, who called them X rays because their nature was at first unknown; they are sometimes also called Roentgen, or Röntgen, rays.

True

False

X rays were indeed discovered in 1895 by W. C. Roentgen. He named them "X rays" because their nature was initially unknown. These rays are also sometimes referred to as Roentgen or Röntgen rays. Therefore, the statement "X rays were discovered in 1895 by W. C. Roentgen" is true.

Explanation

X rays were indeed discovered in 1895 by W. C. Roentgen. He named them "X rays" because their nature was initially unknown. These rays are also sometimes referred to as Roentgen or Röntgen rays. Therefore, the statement "X rays were discovered in 1895 by W. C. Roentgen" is true.

2. Also an active ingredient in enemas, _____ compounds are used in pyrotechnics, petroleum mining and radiology?

Barium compounds are commonly used in various industries. In pyrotechnics, barium compounds are used to produce green-colored fireworks. In petroleum mining, barium compounds are used as drilling mud additives to increase the density of the mud and control well pressure. In radiology, barium compounds are used as contrast agents in X-ray examinations to enhance visibility of the gastrointestinal tract. Additionally, barium compounds are also used as an active ingredient in enemas to help diagnose and treat certain medical conditions. Overall, barium compounds have diverse applications in different fields.

Explanation

Barium compounds are commonly used in various industries. In pyrotechnics, barium compounds are used to produce green-colored fireworks. In petroleum mining, barium compounds are used as drilling mud additives to increase the density of the mud and control well pressure. In radiology, barium compounds are used as contrast agents in X-ray examinations to enhance visibility of the gastrointestinal tract. Additionally, barium compounds are also used as an active ingredient in enemas to help diagnose and treat certain medical conditions. Overall, barium compounds have diverse applications in different fields.

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3. Where on a dog are the retroarticular foramen and hypoglossal canal located?

Leg

Skull

Spine

Pelvis

The retroarticular foramen and hypoglossal canal are located on the skull of a dog. These structures are important for the passage of nerves and blood vessels. The retroarticular foramen is a small opening located behind the jaw joint, through which the hypoglossal nerve passes. The hypoglossal canal is a canal in the base of the skull that also allows for the passage of the hypoglossal nerve. Both of these structures are specific to the skull and are not found on the leg, spine, or pelvis.

Explanation

The retroarticular foramen and hypoglossal canal are located on the skull of a dog. These structures are important for the passage of nerves and blood vessels. The retroarticular foramen is a small opening located behind the jaw joint, through which the hypoglossal nerve passes. The hypoglossal canal is a canal in the base of the skull that also allows for the passage of the hypoglossal nerve. Both of these structures are specific to the skull and are not found on the leg, spine, or pelvis.

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5. Absorbed dose is the energy deposited in a small volume of matter (tissue) by the radiation beam passing through the matter divided by the mass of the matter. What unit, in the International System of quantities and units, is Absorbed Dose measured in?

The gray

The rad

The sievert

The joule

Absorbed dose is measured in joules/kilogram, and a quantity of 1 joule/kilogram has the special unit of gray (Gy) in the International System of quantities and units. (In terms of the older system of radiation quantities and units previously used, 1 Gy equals 100 rad, or 1mGy equals 0.1 rad.)

Explanation

Absorbed dose is measured in joules/kilogram, and a quantity of 1 joule/kilogram has the special unit of gray (Gy) in the International System of quantities and units. (In terms of the older system of radiation quantities and units previously used, 1 Gy equals 100 rad, or 1mGy equals 0.1 rad.)

6. Absorbed dose is the energy deposited in a small volume of matter (tissue) by the radiation beam passing through the matter divided by the mass of the matter. What unit, in the International System of quantities and units, is Absorbed Dose measured in?

The gray

The rad

The sievert

The joule

Absorbed dose is measured in joules/kilogram, and a quantity of 1 joule/kilogram has the special unit of gray (Gy) in the International System of quantities and units. (In terms of the older system of radiation quantities and units previously used, 1 Gy equals 100 rad, or 1mGy equals 0.1 rad.)

Explanation

Absorbed dose is measured in joules/kilogram, and a quantity of 1 joule/kilogram has the special unit of gray (Gy) in the International System of quantities and units. (In terms of the older system of radiation quantities and units previously used, 1 Gy equals 100 rad, or 1mGy equals 0.1 rad.)

7. X-rays are produced when fast moving electrons collide with a metal target. The energy carried in the electrons is converted to x-rays and heat. What percentage of that energy is turned into x-rays?

1%

35%

70%

99%

When fast moving electrons collide with a metal target, the energy they carry is converted into both x-rays and heat. The given answer states that only 1% of the energy is turned into x-rays, indicating that the majority of the energy is converted into heat.

Explanation

When fast moving electrons collide with a metal target, the energy they carry is converted into both x-rays and heat. The given answer states that only 1% of the energy is turned into x-rays, indicating that the majority of the energy is converted into heat.

8. Which diagnostic scan gives some of the highest radiation doses in diagnostic radiography?

CT scan

Ultrasound scan

MRI scan

Flouroscopy scan

CT scans, or computed tomography scans, involve the use of X-rays to produce detailed cross-sectional images of the body. Due to the nature of this imaging technique, CT scans often result in higher radiation doses compared to other diagnostic radiography procedures. This is because CT scans require multiple X-ray beams to capture images from different angles, resulting in a higher radiation exposure for the patient. Ultrasound scans, MRI scans, and fluoroscopy scans do not involve the use of ionizing radiation and therefore do not pose the same radiation risks as CT scans.

Explanation

CT scans, or computed tomography scans, involve the use of X-rays to produce detailed cross-sectional images of the body. Due to the nature of this imaging technique, CT scans often result in higher radiation doses compared to other diagnostic radiography procedures. This is because CT scans require multiple X-ray beams to capture images from different angles, resulting in a higher radiation exposure for the patient. Ultrasound scans, MRI scans, and fluoroscopy scans do not involve the use of ionizing radiation and therefore do not pose the same radiation risks as CT scans.

9. Some veterinary DR x-ray camera systems can lose image quality fairly quickly. The image quality of these CCD (Charged Coupled Device) digital x-ray systems is effected over time by all of the following EXCEPT...

Moving parts

Condensation

Room lighting

Temperature

The image quality of veterinary DR x-ray camera systems can deteriorate over time due to various factors. Moving parts, condensation, and temperature can all have an impact on the image quality of CCD digital x-ray systems. However, room lighting does not affect the image quality of these systems.

Explanation

The image quality of veterinary DR x-ray camera systems can deteriorate over time due to various factors. Moving parts, condensation, and temperature can all have an impact on the image quality of CCD digital x-ray systems. However, room lighting does not affect the image quality of these systems.

10.

The technique shown in this image is known as what?

The bisecting-angle technique

The mandible technique

The maxiallry technique

The parallel technique

The image shows a dental X-ray with the X-ray beam directed perpendicular to the teeth and the film. This technique is known as the parallel technique, where the X-ray beam and the image receptor are positioned parallel to each other, resulting in a more accurate and consistent image. The other options, such as the bisecting-angle technique, mandible technique, and maxillary technique, do not accurately describe the technique shown in the image.

Explanation

The image shows a dental X-ray with the X-ray beam directed perpendicular to the teeth and the film. This technique is known as the parallel technique, where the X-ray beam and the image receptor are positioned parallel to each other, resulting in a more accurate and consistent image. The other options, such as the bisecting-angle technique, mandible technique, and maxillary technique, do not accurately describe the technique shown in the image.