Exercise 2 Flashcards
0
Q
To prevent leakage radiation from exposing the patient, how much protective lead must a X-ray tube have?
A
1.5mm
1
Q
What is the unit for air kerma?
How much is it worth?
A
The Gray (Gy)
1 joule per kilogram
2
Q
What will reduce patient exposure as well as improve image contrast?
A
Precise collocation
3
Q
What bean restricting device is the best as reducing patient exposure?
A
Extension cylinder
4
Q
A .5mm lead gonad shield will reduce female gonadal exposure by approximately how much?
A
75%
5
Q
What is required of fluoroscopic equipment manufactured after June 10, 2006 according for 21 CFR?
A
Air kerma be updated every second
Cumulative air kerma updated every 5 seconds
Irradiation time be updated every 6 seconds
