Protection Unit 2 WS 1 Flashcards
The beam should coincide with the collimator light within how much of the SID
2%
Why is a filter effective at reducing pt dose
they increase quality of the beam and decrease quantity of the beam
both by more than 1/2
What is the best choices of kVp and mAs to offer the most protection to the pt
use highest practical kVp and lowest practical mAs without destroying image quality
What benefit is there to an imaging department in performing repeats
improves skills through awareness and problem areas can be remeadiated
3 (6)ways we can protect the embryo/fetus when imaging pregnant women
postpone unnecessary exams
collimate, ruduce mAs, shield, use high kV
talk to RSO if pregnancy is discovered after exam
What apparatus best protects patients undergoing a scoli series
lead filter with breast and gonadal shield
Shielding junk should be used when collimated beam is within what of the nads in children and adults
5 cm adults
the BEST way to control voluntary motion
COMMUNICATION
the BEST way to control involuntary motion
1/2 time, 2x mAs
What total filtration is required for equipment using 70+kVp
2.5 mm Al Eq
3 examples unnecessary exams
pre employment LSS
pre employment CXR
routine check up CXR
Mens junk shields reduce exposure by how much
90-95%
Womens junk shield reduces exposure by how much
50%
