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ARRT - Fluoroscopy permit Exam Questions and Answers
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ARRT - Fluoroscopy permit ExamQuestions and Answers
C) iireal iitime iiviewing ii- iiCorrect iiAnswers ii-The iiprincipal iipurpose iiof iiimage iiintensified
iifluoro iicompared iito iiconventional iiradiography iiis iithat iiit iiallows iifor ii
A) iihigher iiresolution ii
B)lower iipatient iidose ii
C) iireal iitime iiviewing ii
D) iiall iiof iithe iiabove
Adaptation iiTime ii- iiCorrect iiAnswers ii-The iitime iiit iitakes iifor iithe iihuman iieye iito iiadjust
iito iithe iilow iilight iilevels iiof iiconventional iifluro iiis iicalled
25 iikV ii(pg. ii17 ii- iithe iipotential iimaintained iiby iithe iiaccelerating iianode iiin iithe iiimage
iiintensifier) ii- iiCorrect iiAnswers ii-The iioperating iipotential iiof iimost iimodern iiimage
iiintensifier iitubes iiis iiapproximately:
Minification iiratio ii- iiCorrect iiAnswers ii-The iisquared iiratio iiof iithe iiinput iito iioutput
iiscreen iidiameter iiin iian iiimage iiintensifier iitube iiis iitermed:
2.25 ii(9^2)/(6^2) ii- iiCorrect iiAnswers ii-When iichanging iifrom iia ii9" iiinput iiphosphor iito iia
ii6", iiyou iimust iiincrease iiyour iiexposure iifactor iiby ii___ iitimes.
A. ii1-5 iimA ii- iiCorrect iiAnswers ii-The iinormal iimA iiused iifor iiimage iiintensified iifluoro iiis
iiabout: ii
A. ii1-5 iimA ii
B. ii6-10 iimA ii
C. ii25-100 iimA ii
D. ii100-600 iimA
D) iiconversion iifactor
- iiconversion iifactor iiis iiused iiin iithe iiperiodic iicheck iiof iibrightness iigain, iisince iiBG iican
iideteriorate iias iimuch iias ii10% iiyearly iidue iito iithe ii"aging" iiof iithe iiinput iiand iioutput
iiscreen iiphosphors. iiIt's iicalculated iias iithe ii[intensity iiof iioutput iiphosphor] ii/ iiinput
iiexposure iirate ii- iiCorrect iiAnswers ii-A iistandardized iimethod iiof iievaluating iithe iilight
iiemission iiof iian iiimage iiintensifier iiis iicalled: ii
A) iibrightness iigain ii
B) iirelative iiaperture ii
C) iisignal iito iinoise iiratio ii
, D) iiconversion iifactor
D) iiall iiof iithe iiabove ii- iiCorrect iiAnswers ii-The iibrightness iigain ii(image iibrightness) iiof
iian iiimage iiintensifier iican iibe iiincreased iiby iiincreasing iithe: ii
A) iiexposure iirate iito iithe iiinput iiscreen ii
B) iiminification iiratio ii
C) iiacceleration iipotential iiof iithe iitube ii(kVp) ii
D) iiall iiof iithe iiabove
A) iiimproved iiimage iiquality ii
- iithere iiis iiMORE iiminification iigain, iiand iiHIGHER iipatient iidose iiwith iiautomatic
iibrightness iicontrol iito iicompensate iifor iithe iidecreased iibrightness ii- iiCorrect iiAnswers
ii-The iiprinciple iiadvantage iiof iithe iismaller iifield iiof iithe iidual iifield iiimage iiintensifier iiis: ii
A) iiimproved iiimage iiquality ii
B) iiless iiminification iigain ii
C) iilower iipatient iidose ii
D) iiall iiof iithe iiabove
A) iiphototopic ii(cone) iivision ii- iiCorrect iiAnswers ii-The iipart iiof iithe iieyes iithat iidetect
iismall iiobject iidetails iiare: ii
A) iiphototopic ii(cone) iivision ii
B) iiscotopic ii(rod) iivision
D) iidecrease iipt iiskin iidose ii- iiCorrect iiAnswers ii-During iian iiimage iiintensified iifluoro
iistudy ii(manual iimode), iian iiincrease iiin iikilovoltage iiwill ii
A) iilower iipenetration ii
B) iiincrease iipt's iidose ii
C)improve iiimage iicontrast ii
D) iidecrease iipt iiskin iidose
C)electronic iiintensification ii
- iiconversion iigain iiisn't iia iithing ii(conversion iifactor iiis), iiminification iigain iiis iithe
iiintensification iifrom iithe iisame iiamount iiof iielectrons iifrom iithe iilarge iiinput iiscreen
iibeing iisqueezed iionto iithe iismaller iioutput iiscreen. ii- iiCorrect iiAnswers ii-The iiincrease
iiin iilight iiproduction iiby iian iiimage iiintensifier iiresulting iifrom iithe iiacceleration iiof iithe
iielectrons iiacross iithe iitube iiis iicalled: ii
A)conversion iigain ii
B)minification iigain ii
C)electronic iiintensification ii
D)Lambert iigain
A) ii5-20 iitimes ii- iiCorrect iiAnswers ii-The iibrightness iiof iian iiimage iiintensified iifluoro
iiimage iiis iiabout ii____ iigreater iithan iia iiconventional iifluoro iiscreen iiimage: ii
A) ii5-20 iitimes ii
B) ii20-40 iitimes ii
C)50-200 iitimes ii
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