Patients who underwent early angiographic procedures were exposed to alpha, beta, and gamma radiation via thorotrast injection. What type of cancer did they suffer from?

A half value layer is the amount of shielding material that will reduce the radiation intensity to one-fourth its original value.

Background equivalent radiation time compares doses from radiologic procedures to concepts the general public can understand, such as natural background radiation or miles driven.

Every doubling of your distance from the x-ray source reduces your exposure to ___________.

1 Point Extra Credit: What does LD 75/30 mean?

According to the diagram, in order to reduce the intensity of curve I to 25% of its original value, it will require about:

IDEA requires annual review of a student’s progress and a three-year evaluation to determine whether the student’s needs have changed. IDEA also stipulates that an IEP must be revised in all of the following circumstances EXCEPT:

Mr. Hale suspects that two of his students may have a learning disability. He has met with their parents, documented his systematic attempts to help them, and is now providing intensive instruction. He instructs them three times a week along with four other students from other second grade classes who have similar struggles. Mr. Hale is using which of the following?

If the HVL was determined to be 0.25 mm Pb, how thick should the shielding material be to reduce the exposure to ¼?

Parents are key participants in all decision making related to their child’s suspected or documented disability. Their rights as parents include all of the following EXCEPT: