GXMO Study Guide Questions and
Answers Latest Version Rated A+
What is the role of a GXMO in radiology?
✔✔The role of a GXMO is to assist in performing radiographic exams under the supervision of a
licensed radiologic technologist or physician.
What is the purpose of radiographic collimation?
✔✔Collimation is used to restrict the X-ray beam to the area of interest, reducing unnecessary
radiation exposure to the patient and surrounding tissues.
What is the importance of patient identification in radiology?
✔✔Proper patient identification is essential to avoid errors, ensuring the correct patient receives
the correct exam and treatment.
What does the term "radiation dose" refer to in radiology?
✔✔Radiation dose refers to the amount of ionizing radiation absorbed by the body during a
radiographic procedure.
1
,What is the primary function of a radiographic grid?
✔✔A radiographic grid is used to reduce scatter radiation and improve image contrast by
filtering out scattered X-rays.
What does "ALARA" stand for in radiology?
✔✔ALARA stands for "As Low As Reasonably Achievable," a principle focused on minimizing
radiation exposure to both patients and staff.
What is the role of the X-ray tube in radiography?
✔✔The X-ray tube generates X-rays by accelerating electrons and directing them toward a
target, where they produce the X-ray beam.
What is the primary function of kVp in radiography?
✔✔kVp (kilovolt peak) controls the energy and penetrating power of the X-ray beam, affecting
image contrast and patient exposure.
What is the difference between contrast and density in radiographic imaging?
✔✔Contrast refers to the difference in shades of gray in an image, while density relates to the
overall blackness or darkness of the image.
2
, How does body habitus affect radiographic imaging?
✔✔Body habitus can affect positioning and technique, as thicker body parts may require
adjustments in exposure to produce high-quality images.
What is the significance of mA (milliamperage) in radiographic imaging?
✔✔mA controls the quantity of X-rays produced and influences image density, with higher mA
settings leading to more X-ray photons being generated.
What is the purpose of lead shielding in radiology?
✔✔Lead shielding is used to protect parts of the body not involved in the imaging procedure
from unnecessary radiation exposure.
What is the importance of proper positioning in radiography?
✔✔Proper positioning ensures the anatomical structures are correctly aligned for accurate and
diagnostic-quality radiographic images.
What is the role of the radiologist in interpreting radiographic images?
3
Answers Latest Version Rated A+
What is the role of a GXMO in radiology?
✔✔The role of a GXMO is to assist in performing radiographic exams under the supervision of a
licensed radiologic technologist or physician.
What is the purpose of radiographic collimation?
✔✔Collimation is used to restrict the X-ray beam to the area of interest, reducing unnecessary
radiation exposure to the patient and surrounding tissues.
What is the importance of patient identification in radiology?
✔✔Proper patient identification is essential to avoid errors, ensuring the correct patient receives
the correct exam and treatment.
What does the term "radiation dose" refer to in radiology?
✔✔Radiation dose refers to the amount of ionizing radiation absorbed by the body during a
radiographic procedure.
1
,What is the primary function of a radiographic grid?
✔✔A radiographic grid is used to reduce scatter radiation and improve image contrast by
filtering out scattered X-rays.
What does "ALARA" stand for in radiology?
✔✔ALARA stands for "As Low As Reasonably Achievable," a principle focused on minimizing
radiation exposure to both patients and staff.
What is the role of the X-ray tube in radiography?
✔✔The X-ray tube generates X-rays by accelerating electrons and directing them toward a
target, where they produce the X-ray beam.
What is the primary function of kVp in radiography?
✔✔kVp (kilovolt peak) controls the energy and penetrating power of the X-ray beam, affecting
image contrast and patient exposure.
What is the difference between contrast and density in radiographic imaging?
✔✔Contrast refers to the difference in shades of gray in an image, while density relates to the
overall blackness or darkness of the image.
2
, How does body habitus affect radiographic imaging?
✔✔Body habitus can affect positioning and technique, as thicker body parts may require
adjustments in exposure to produce high-quality images.
What is the significance of mA (milliamperage) in radiographic imaging?
✔✔mA controls the quantity of X-rays produced and influences image density, with higher mA
settings leading to more X-ray photons being generated.
What is the purpose of lead shielding in radiology?
✔✔Lead shielding is used to protect parts of the body not involved in the imaging procedure
from unnecessary radiation exposure.
What is the importance of proper positioning in radiography?
✔✔Proper positioning ensures the anatomical structures are correctly aligned for accurate and
diagnostic-quality radiographic images.
What is the role of the radiologist in interpreting radiographic images?
3
