PROTECTION IN MEDICAL
RADIOGRAPHY TEST
BANK LATEST EXAM 2024-
2025 QUESTION AND
ANSWERS
,What type of radiation poses the greatest occupational hazard in diagnostic
radiology? - CORRECT ANSWER-Scattered radiation
What is the standard lead equivalent of a lead apron? - CORRECT ANSWER-0.5
How often should a lead apron be inspected for cracks or other defects? -
CORRECT ANSWER-Once a year
, What is the most effective means of protection for the radiologic technologist to
reduce their radiation dose? - CORRECT ANSWER-Increase distance from the
radiation source
What are the two most common materials used for structural protective barriers? -
CORRECT ANSWER-Lead and concrete
What is the minimal amount of lead in protective eyeglasses? - CORRECT
ANSWER-0.35 mm
Radiographers must never stand in the primary beam to restrain a patient. -
CORRECT ANSWER-True
Iodine-131 joined with sodium chloride is used in the treatment of what type of
cancer? - CORRECT ANSWER-Thyroid
What is the most common radioisotope used in nuclear medicine studies? -
CORRECT ANSWER-Technetium-99m
In PET scanning Flourine-18 can be attached to what molecule which is then taken
up by cancerous cells? - CORRECT ANSWER-Glucose
A half value layer is the amount of lead needed to attenuate high-energy radiation
by what amount? - CORRECT ANSWER-50%
Designing a PET/CT suite does not present a unique radiation safety problem. -
CORRECT ANSWER-False