Row 1
The function of an X-ray beam filter in diagnostic radiology is to
Which of the following x-ray exams would give the fetus the highest entrance skin exposure (ESE)?
Pelvis Femur
chest Skull
Pelvis
The annual effective dose limit for an occupational radiation worker is:
50 mSv
The greatest risk for a pregnant woman who receives a high exposure is during the:
first trimester
Personnel monitors should be worn where?
Region of the collar
on the anterior surface of the body
outside of the apron
What is the unit commonly used to report the effective dose to occupational workers in the United States?
mSv
Which of the following would be used to reduce the likelihood of genetic radiation effects?
Gonad shields
What is the first step in protection of the reproductive organs?
Adequate and precise collimation of the radiographic beam to include only the anatomy of interest.
During a radiographic examination, which of the following combinations of technical exposure factors reduce patient radiation dose?
Which of the following would be consdered long-term effects?
Cataracts Leukemia Erythema
Cataracts Leukemia
The NCRP recommended monthly equivalent dose limit for a pregnant worker is ______________mSv.
0.5
What is a frequent problem in diagnostic pediatric radiography?
Patient motion
A gonad shield should be worn whenever the edge of the radiation field is within ______cm of the gonads.
5
The NCRP recommended 9-month equivalent dose limit for a pregnant worker is _____mSv.
5
Reducing the field size to the anatomic features of interest not only reduces patient exposure, but also:
increases recorded image quality by decreasing scatter.
personnel monitors should be worn whenever radiation workers are likely to risk receiving ____% or more of the annual effective dose limit.
10
A declared pregnant radiation worker should wear a second personnel monitor. This monitor should be positioned at the:
waist level
What is the SI unit of exposure that measures radiation in air?
Air kerma
Which of the following radiographic exams typically delivers the greatest gonadal exposure?
skull chest pelvis limb
pelvis
short-term effects of radiation would occur within how long?
3 months
A 28 year old radiation worker can have an annual cumulative effective dose of:
280 mSv
Whenever scattered radiation decreases, the radiographer's exposure:
Decreases