Protection Unit 2 WS 1 Flashcards Preview

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Flashcards in Protection Unit 2 WS 1 Deck (13):
1

The beam should coincide with the collimator light within how much of the SID

2%

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

3

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

4

What benefit is there to an imaging department in performing repeats

improves skills through awareness and problem areas can be remeadiated

5

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

6

What apparatus best protects patients undergoing a scoli series

lead filter with breast and gonadal shield

7

Shielding junk should be used when collimated beam is within what of the nads in children and adults

5 cm adults

8

the BEST way to control voluntary motion

COMMUNICATION

9

the BEST way to control involuntary motion

1/2 time, 2x mAs

10

What total filtration is required for equipment using 70+kVp

2.5 mm Al Eq

11

3 examples unnecessary exams

pre employment LSS
pre employment CXR
routine check up CXR

12

Mens junk shields reduce exposure by how much

90-95%

13

Womens junk shield reduces exposure by how much

50%