GXMO Exam Questions and Answers
Latest Version Graded A+
What is the primary role of a General X-ray Machine Operator (GXMO)?
✔✔A GXMO is responsible for operating X-ray equipment to produce diagnostic images for
medical purposes.
What is the purpose of a lead apron during an X-ray procedure?
✔✔A lead apron is used to protect the patient from unnecessary radiation exposure, particularly
to the reproductive organs.
What is the correct procedure for positioning a patient for a chest X-ray?
✔✔The patient should be positioned upright with their chest against the imaging receptor, arms
raised and out of the field of view.
How do you reduce the risk of radiation exposure to both the patient and the operator?
✔✔By using appropriate shielding, minimizing exposure time, and maintaining proper distance
from the X-ray source.
1
,What is the function of a grid in radiography?
✔✔A grid is used to reduce scatter radiation, improving image quality by allowing only the
primary X-ray beam to reach the image receptor.
How is the exposure time adjusted for a patient with a larger body mass?
✔✔The exposure time may need to be increased to ensure adequate penetration of the X-ray
beam through the body.
What is the primary safety concern when operating X-ray equipment?
✔✔The primary safety concern is minimizing radiation exposure to both the patient and the
radiologic technologist.
What is the significance of proper patient positioning in X-ray imaging?
✔✔Correct patient positioning ensures that the area of interest is properly visualized, minimizing
the need for repeat exposures.
What is the role of the GXMO in patient education before an X-ray procedure?
✔✔The GXMO explains the procedure to the patient, addresses any concerns, and ensures that
the patient understands what is required.
2
, What should be done if a patient is unable to hold still during an X-ray procedure?
✔✔The GXMO should try to assist the patient in positioning or use immobilization devices, if
necessary, to prevent movement.
How is the concept of ALARA (As Low As Reasonably Achievable) applied in radiography?
✔✔ALARA refers to minimizing radiation exposure to patients and staff by using the lowest
possible dose while achieving high-quality images.
What is the correct procedure for handling a radiographic film that is damaged?
✔✔The damaged film should be discarded, and a new exposure should be taken, ensuring that
proper procedures are followed to avoid retake errors.
What should be done if a patient refuses to undergo an X-ray examination?
✔✔The GXMO should respect the patient's decision, inform the supervising physician, and
document the refusal in the patient's record.
What does the term “image receptor” refer to in radiography?
3
Latest Version Graded A+
What is the primary role of a General X-ray Machine Operator (GXMO)?
✔✔A GXMO is responsible for operating X-ray equipment to produce diagnostic images for
medical purposes.
What is the purpose of a lead apron during an X-ray procedure?
✔✔A lead apron is used to protect the patient from unnecessary radiation exposure, particularly
to the reproductive organs.
What is the correct procedure for positioning a patient for a chest X-ray?
✔✔The patient should be positioned upright with their chest against the imaging receptor, arms
raised and out of the field of view.
How do you reduce the risk of radiation exposure to both the patient and the operator?
✔✔By using appropriate shielding, minimizing exposure time, and maintaining proper distance
from the X-ray source.
1
,What is the function of a grid in radiography?
✔✔A grid is used to reduce scatter radiation, improving image quality by allowing only the
primary X-ray beam to reach the image receptor.
How is the exposure time adjusted for a patient with a larger body mass?
✔✔The exposure time may need to be increased to ensure adequate penetration of the X-ray
beam through the body.
What is the primary safety concern when operating X-ray equipment?
✔✔The primary safety concern is minimizing radiation exposure to both the patient and the
radiologic technologist.
What is the significance of proper patient positioning in X-ray imaging?
✔✔Correct patient positioning ensures that the area of interest is properly visualized, minimizing
the need for repeat exposures.
What is the role of the GXMO in patient education before an X-ray procedure?
✔✔The GXMO explains the procedure to the patient, addresses any concerns, and ensures that
the patient understands what is required.
2
, What should be done if a patient is unable to hold still during an X-ray procedure?
✔✔The GXMO should try to assist the patient in positioning or use immobilization devices, if
necessary, to prevent movement.
How is the concept of ALARA (As Low As Reasonably Achievable) applied in radiography?
✔✔ALARA refers to minimizing radiation exposure to patients and staff by using the lowest
possible dose while achieving high-quality images.
What is the correct procedure for handling a radiographic film that is damaged?
✔✔The damaged film should be discarded, and a new exposure should be taken, ensuring that
proper procedures are followed to avoid retake errors.
What should be done if a patient refuses to undergo an X-ray examination?
✔✔The GXMO should respect the patient's decision, inform the supervising physician, and
document the refusal in the patient's record.
What does the term “image receptor” refer to in radiography?
3
