MEDICINE
RADIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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As Low As Requirement Allowed
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As Long As Reasonably Allowed
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As Low as Required Annually
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As Low As Reasonably Achievable
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Detailed explanation-1: -ALARA stands for “as low as reasonably achievable”. ALARA means avoiding exposure to radiation that does not have a direct benefit to you, even if the dose is small. To do this, you can use three basic protective measures in radiation safety : time, distance, and shielding.
Detailed explanation-2: -ALARA (As Low As Reasonably Achievable) regulatory guidelines were initially developed to protect workers from unnecessary exposure to nuclear radiation. Any medical professional who works with ionizing radiation should be familiar with the acronym ALARA.
Detailed explanation-3: -The ALARA levels are derived from the NRC’s dose limits in 10 CFR 20 which can also be found in the table NRC Dose Limits. Even though radioactive materials and x-ray producing equipment are regulated by different entities, ALARA levels for both exposures have been derived using the NRC limits.
Detailed explanation-4: -To balance the risks and benefits of using radiation for diagnostics, the International Commission on Radiologic Protection (ICRP) has introduced the “As Low As Reasonably Achievable” (ALARA) principle in 1977 (ICRP, 1977; Hendee and Edwards, 1986).