4 X-ray Intro safety Precaution Flashcards
What should be monitored regarding newly installed machines?
Monitor radiation before and after modifying the machine for special experiments.
What should be checked before turning on an x-ray unit?
Check the shielding.
Why is it important to plan and rehearse examinations using x-ray systems?
To minimize exposure (beam-on) time and reduce total radiation exposure in the room.
What three factors are essential for radiation protection?
- Time spent near the machine * Distance from the x-ray source * Shielding used by the worker
What type of protective gear should be worn in the x-ray room?
- Protective gloves (w/ 0.55 mm lead equivalent) * Protective apron (w/ 0.25 mm lead equivalent)
What is the purpose of personal dosimeters in x-ray facilities?
To monitor radiation doses to workers.
Who should take extra precautions regarding x-ray exposure?
Pregnant women.
What are possible adverse effects of x-ray exposure?
- Development of leukemia * Increased incidence of other types of cancer * Developmental defects/problems * Damage to the hematopoietic system * Causes burns
Which tissues are most sensitive to x-ray radiation?
- Gonads * Embryo/fetus * Blood forming tissues
What distance should be maintained from an x-ray radiation source for protection?
At least 2 meters.
What is the most effective mechanism for protecting workers from unnecessary x-ray exposure?
Permanently installed shielding.
Who should be present in the x-ray room during exposures?
Only personnel required for the x-ray procedures or training.
What should staff avoid doing routinely during x-ray procedures?
Holding patients.
What should be done if a staff member is pregnant?
Notify the head of your department.
What type of x-ray unit is typically portable and used for livestock?
Portable x-ray unit.
What are the ratings for a mobile x-ray unit?
72 kv & 12 ma – 125 kv & 300 ma.
What is the kv rating range for stationary x-ray units?
125 kv - 600 ma.
What is a safety precaution regarding the use of dosimeters?
Wear dosimeters between your shirt collar and waist on the side facing the radiation source.
What should be done to minimize radiation exposure during fluoroscopy procedures?
Keep the time of radiation exposure short.
What type of films should be used to limit exposure to radiation?
Fast film & intensifying screens.
True or False: The primary x-ray beam should be directed toward people in the area.
False.
