ARRT SAFETY REVIEW QUESTIONS WITH 100% CORRECT ANSWERS!!

Which cell types have the lowest radiosensitivity: nerve cells muscle cells spermatids lymphocytes - nerve cells (except in fetal life, they are highly radiosensitive) Which cells are the most radiosensitive in the body - lymphocytes Which interaction between x-ray photons and matter involves a high energy photon and the ejection of an outer shell electron? photoelectric effect coherent scatter Compton scatter pair produciton - Compton scatter What is likely to occur if 250 mGy is accidentally delivered to a recently fertilized ovum? Skeletal anomalies CNS anomalies Spontaneous abortion Childhood malignancy - spontaneous abortion Primary radiation barriers include: - walls, doors, floors secondary radiation barriers include - lead aprons, lead gloves, thyroid shields, ceiling In which of the following examinations would an IR front having very low absorption properties be especially important?Abdominal radiography Extremity radiography Angiography Mammography - mammography The most radiosensitive portion of the GI tract is - small bowel Which of the following has (have) an effect on the amount and type of radiation-induced tissue damage? Quality of radiation Type of tissue being irradiated Fractionation a. 1 only b. 1 and 2 c. 1 and 3 d. all 3 - all 3 How is the intensity of an x-ray photon affected after each time it scatters? Its intensity increases 4 times. Its intensity increases 1000 times. Its intensity decreases 4 times. Its intensity decreases 1000 times. - its intensity decreases 1000 times