Biology > QUESTIONS and ANSWERS > ARRT Exam Practice (All)

ARRT Exam Practice

Document Content and Description Below

ARRT Exam Practice Units of radiation absorbed in the air? - CORRECT ANSWER-Gya The change in the x-ray beam as it travels through a patient? - CORRECT ANSWER-attenuation photon tissue interaction ... that makes radiology possible because of it's creation of contrast? - CORRECT ANSWER-photoelectric interaction (fully absorbed = contrast) Unit of radioactivity? - CORRECT ANSWER-becquerel unit of effective dose? - CORRECT ANSWER-Sievert Linear energy transfer ... - CORRECT ANSWER-varies for different types of radiation unit of Bq would be used in what imaging modality? - CORRECT ANSWER-Nuclear medicine graphs that show relationship between radiation received and the organisms response? - CORRECT ANSWER-dose-response relationship Medical x-rays are examples of? - CORRECT ANSWER-artificially produced radiation Cataractogensis does not occur at low levels of radiation exposure; it is best expressed by? - CORRECT ANSWER-threshold dose-response relationship Increased dose equals increased probability of effects best describes which of the following? - CORRECT ANSWER-Stochastic effects (probability) The cumulative occupational exposure for a 22 year old radiographer is? - CORRECT ANSWER-220 mSv (agex10=_____mSv) The annual effective dose limit for the general public, assuming frequent exposure is? - CORRECT ANSWER-1.0 mSv FREQUENT EXPOSURE Secondary protective barrier must be at least how thick? - CORRECT ANSWER-Secondary = 1/32 Pb equivalent Primary= 1/16 Pb equivalent The intensity of the scattered beam is 1/1000 the intensity of the primary beam at a _______ angle 1 meter from the patient? - CORRECT ANSWER-90 degree angle The minimum source [Show More]

Last updated: 1 year ago

Preview 3 out of 10 pages

Buy Now

Instant download

We Accept: