C12: Review Questions Flashcards
As a consequence of their anatomic location, the female reproductive organs receive about _____ exposure during a given radiographic procedure involving the pelvic region than do the male reproductive organs.
three times more
In fluoroscopy, how is the amount of radiation that a patient receives usually estimated?
by measuring the radiation exposure rate at tabletop and multiplying this by the fluoroscopy time
As part of the Image Gently Campaign, radiographers and imaging facilities can pledge to:
Image Gently
In which of the following projections will a young female patient receive a significantly lower dose to her breast tissue during a chest x-ray study?
PA
A women who is 3 months pregnant has been in a motor vehicle accident. The emergency room physician suspects there is injury to her cervical spine and feels justified in ordering an x-ray examination to aid in determining the extent of the patient’s injury. Because this patient is pregnant, the radiographer should:
1. select the smallest technical exposure factors that will produce a diagnostically useful image
2. adequately and precisely collimate the radiographic beam to include only the anatomic area of interest
3. shield the patient’s lower abdomen and pelvic region with a suitable protective contact shield
1, 2, and 3
Pediatric patients require consideration and appropriate radiation protection procedures because they are much more vulnerable to which of the following?
the late effects of radiation
The use of a PA projection during a juvenile scoliosis radiographic examination results in which of the following?
lower entrance exposure dose to the anterior body surface, thereby significantly reducing the dose to the breast
The most widely used test to determine the degree of bone loss by measuring bone mineral density is:
Dual Energy X-Ray Absorptiometry
Which of the following examinations are considered unnecessary radiologic procedures?
1. chest x-ray study as part of a preemployment physical
2. screening mammography
3. whole-body multislice spiral CT screening
1 and 3 only
If a maximum of 500 people inhabited an island and each person were to receive an equivalent dose (EqD) of 0.005 Sv gonadal radiation, the gross genetic effect would be _____ the effect occurring if 50 individual inhabitants were each to receive 0.05 Sv of gonadal radiation and no equivalent dose were received by other inhabitants.
identical to
