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GXMO Study Guide Questions and Answers 1: What is the primary purpose of the GXMO certification?--- correct answer --- The primary purpose of the GXMO certification is to ensure that operators of general X-ray machines have the necessary knowledge and skills to safely and effectively perform ra...

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  • October 15, 2024
  • 14
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • gxmo study guide questions and answers

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  • GXMO
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GXMO Study Guide Questions and Answers


1: What is the primary purpose of the GXMO certification?--- correct answer
---

The primary purpose of the GXMO certification is to ensure that operators
of general X-ray machines have the necessary knowledge and skills to safely
and effectively perform radiographic procedures.



2: What are X-rays, and how are they produced?--- correct answer ---

X-rays are a form of electromagnetic radiation with high energy and short
wavelengths. They are produced when high-speed electrons collide with a
metal target, typically tungsten, in an X-ray tube.



3: What is the role of the cathode in an X-ray tube?--- correct answer ---

The cathode in an X-ray tube serves as the source of electrons. It consists of
a filament that, when heated, emits electrons through a process called
thermionic emission.



4: How does the anode function in an X-ray tube?--- correct answer ---

The anode in an X-ray tube serves as the target for the electrons emitted by
the cathode. When the electrons strike the anode, X-rays are produced.



5: What safety measures should be taken to protect patients from
unnecessary radiation exposure during X-ray procedures?--- correct answer
---

Safety measures include using lead shielding, minimizing exposure time,
maintaining appropriate distance, and using the lowest effective dose of
radiation.



6: Explain the concept of ALARA.

, ALARA stands for As Low As Reasonably Achievable. It is a radiation safety
principle aimed at minimizing radiation exposure to patients and staff by
using the lowest possible dose while achieving the required diagnostic
quality.



7: What is the significance of the inverse square law in radiology?--- correct
answer ---

The inverse square law states that the intensity of radiation is inversely
proportional to the square of the distance from the source. This means that
increasing the distance from the X-ray source significantly reduces
exposure.




8: Describe the function of a grid in radiographic imaging.

A grid is used in radiographic imaging to reduce the amount of scattered
radiation reaching the image receptor, thereby improving image contrast
and quality.



9: What are the common types of image receptors used in X-ray imaging?---
correct answer --- Common types of image receptors include film-screen
systems, computed radiography (CR) plates, and digital radiography (DR)
detectors.



10: How does digital radiography differ from traditional film-screen
radiography?--- correct answer ---

Digital radiography uses digital detectors to capture and store X-ray images
electronically, allowing for immediate image review and manipulation,
whereas traditional film-screen radiography uses physical film that requires
chemical processing.



11: What is the purpose of collimation in X-ray imaging?--- correct answer --
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