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Correct Answer: stand within 3 feet away from
the machine.
in radiological environments, such as those involving x-ray machines, it is paramount for operators to adhere to safety protocols to minimize radiation exposure and ensure their well-being. the correct safety procedures include several key elements, and understanding each is crucial for protecting health.
**distance from the machine**: the operator should maintain a safe distance from the x-ray machine. the guideline is to stand at least 6 feet away from the machine or as far away as practicable. this distance significantly reduces the radiation exposure due to the inverse square law, which states that the intensity of radiation decreases dramatically as the distance from the source increases.
**use of protective barriers**: if available, operators should stand behind a protective barrier. these barriers are usually made from materials like lead, which are excellent at absorbing radiation and thus prevent the radiation from reaching the operator. this is a critical safety measure, especially in setups where maintaining a large distance from the source is impractical.
**avoiding direct line of sight**: operators should also ensure that they are not in the direct line of sight of the x-ray beam. x-rays travel in straight lines and can penetrate through soft tissues, so standing outside of the beam’s path helps to avoid direct exposure.
**using devices for film placement**: to further reduce the need for close contact with the radiation source, operators should use mechanical devices to position x-ray films or digital sensors. this practice eliminates the need for the operator to manually hold these items close to the radiation source, thereby reducing exposure.
**avoid holding films for patients**: similar to the above point, it is advisable not to hold films or digital sensors for patients during an x-ray. holding the film can expose the operator’s hands or other parts of the body to radiation. utilizing holders or asking patients to hold the film themselves, if they are able, minimizes this risk.
the instruction to **"stand within 3 feet away from the machine"** contradicts these safety protocols. standing this close to an x-ray machine without adequate protective measures would significantly increase the operator's exposure to harmful radiation. therefore, this is an incorrect practice and should be avoided to ensure the operator's safety. it is crucial to maintain a greater distance, utilize protective barriers, and avoid direct exposure to x-ray beams to minimize health risks associated with radiation exposure.
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