GXMO Practice Test Questions and
Answers Latest Version Already Passed
What is the purpose of a radiographic collimator?
✔✔To limit the exposure field and reduce scatter radiation.
What is the role of the radiologic technologist in ensuring patient safety?
✔✔To follow proper protocols and minimize exposure to radiation.
What is the required positioning for a chest X-ray to best visualize the lungs?
✔✔The patient should be in a posteroanterior (PA) projection with the arms raised.
What does the term “radiographic contrast” refer to?
✔✔The difference in density between various areas of the image, helping to distinguish
anatomical structures.
What is the typical patient positioning for an abdominal X-ray?
✔✔The patient should be in a supine position with the central ray directed to the mid-abdomen.
1
,How can you reduce patient exposure during a radiographic procedure?
✔✔By using the lowest possible radiation dose, proper collimation, and appropriate exposure
settings.
What does "grid use" in radiography help with?
✔✔It helps reduce scatter radiation, improving image quality.
Why is it essential to ensure patient identification before performing an X-ray?
✔✔To ensure the correct procedure is performed on the correct patient.
What is the main purpose of the X-ray tube’s anode?
✔✔To convert the energy from electrons into X-rays.
What does the term “SID” (Source-to-Image Distance) mean in radiology?
✔✔It refers to the distance between the X-ray tube and the image receptor, affecting image
quality and patient exposure.
2
, What is the significance of the "gray" unit in radiation dosimetry?
✔✔It measures the amount of radiation absorbed by the patient.
What is the recommended procedure for performing a lateral X-ray of the chest?
✔✔The patient should be in a true lateral position with arms raised above the head and the
central ray directed to the mid-chest.
How does increasing kilovoltage (kVp) affect radiographic images?
✔✔It increases image penetration and reduces patient exposure by allowing for lower
milliampere-seconds (mAs).
What should you do if a patient appears nervous or anxious about a procedure?
✔✔You should reassure them, explain the procedure clearly, and ensure they are comfortable.
What is the purpose of using a lead apron during certain X-ray exams?
✔✔To protect sensitive body parts, such as the reproductive organs, from unnecessary radiation
exposure.
3
Answers Latest Version Already Passed
What is the purpose of a radiographic collimator?
✔✔To limit the exposure field and reduce scatter radiation.
What is the role of the radiologic technologist in ensuring patient safety?
✔✔To follow proper protocols and minimize exposure to radiation.
What is the required positioning for a chest X-ray to best visualize the lungs?
✔✔The patient should be in a posteroanterior (PA) projection with the arms raised.
What does the term “radiographic contrast” refer to?
✔✔The difference in density between various areas of the image, helping to distinguish
anatomical structures.
What is the typical patient positioning for an abdominal X-ray?
✔✔The patient should be in a supine position with the central ray directed to the mid-abdomen.
1
,How can you reduce patient exposure during a radiographic procedure?
✔✔By using the lowest possible radiation dose, proper collimation, and appropriate exposure
settings.
What does "grid use" in radiography help with?
✔✔It helps reduce scatter radiation, improving image quality.
Why is it essential to ensure patient identification before performing an X-ray?
✔✔To ensure the correct procedure is performed on the correct patient.
What is the main purpose of the X-ray tube’s anode?
✔✔To convert the energy from electrons into X-rays.
What does the term “SID” (Source-to-Image Distance) mean in radiology?
✔✔It refers to the distance between the X-ray tube and the image receptor, affecting image
quality and patient exposure.
2
, What is the significance of the "gray" unit in radiation dosimetry?
✔✔It measures the amount of radiation absorbed by the patient.
What is the recommended procedure for performing a lateral X-ray of the chest?
✔✔The patient should be in a true lateral position with arms raised above the head and the
central ray directed to the mid-chest.
How does increasing kilovoltage (kVp) affect radiographic images?
✔✔It increases image penetration and reduces patient exposure by allowing for lower
milliampere-seconds (mAs).
What should you do if a patient appears nervous or anxious about a procedure?
✔✔You should reassure them, explain the procedure clearly, and ensure they are comfortable.
What is the purpose of using a lead apron during certain X-ray exams?
✔✔To protect sensitive body parts, such as the reproductive organs, from unnecessary radiation
exposure.
3
