CERTIFIED STUDY GUIDE RESOURCES
COMPREHENSIVE QUESTIONS [MOST TESTED
QUESTIONS] AND VERIFIED DETAILED
ANSWERS GRADED A+ ALREADY PASSED
The advantage of a lung ventilation scan performed with
Xenon is
a. the ability to match perfusion and vent positioning
b. the ability to detect delayed washout
c. the ability to perform the exam at the patient's
bedside
d. the ability to perform perfusion before ventilation
without increasing the dose given for the vent study -
(correct answer) B. the ability to detect delayed
washout
In which RP is Tc99m left in the valence state of +7
a. sulfur colloid
,b. MAA
c. MAG3
d. sestamibi - (correct answer) A. Sulfur colloid
a tech receives a request for a patient to receive Sm153
for palliation of pain from bone mets. the patient has a
WBC count of 3500 and 40000 platelets. what should
happen next?
a. the order should be changed to Sr89
b. the tx should be delayed until the platelet ct is at least
60,000
c. the tx should be delayed until the WBC is below 2400
d. the Sm153 should be ordered - (correct answer) B.
the tx should be delayed until the platelet ct is at least
60,000
a SC kit requires the addition of 1-3 ml containing no
more than 500mCi of TcO4-. in addition, 1.5 ml of
solution A must be added before boiling, and 1.5 ml of
Solution B must be added after cooling. If the kit is
,correctly prepared, what is the max concentration of
Tc99m it could contain?
a. 83 mCi/ml
b. 125 mCi/ml
c. 167 mCi/ml
d. 500 mCi/ml - (correct answer) B. 125 mCi/ml
A hine-duley phantom is useful for testing the spatial
resolution and spatial linearity with only one image.
a. true
b. false - (correct answer) B. false
A diphosphonate kit contian 180 mCi of Tc99m in 30 ml
when it is prepared at 8am. Immediately, a 20 mCi dose
is withdrawn for a bone scan. if the patient arrives late at
9:30 and half the volume is accidentally discharged, how
, much volume from the kit must now be added to the
syringe to correct the dose to 20 mCi? (no other doses
have been withdrawn meanwhile, and the decay factor
for 1.5 hrs is 0.841)
a. 1.5 ml
b. 2.0 ml
c. 2.3 ml
d. 2.5 ml
e. 2.7 ml - (correct answer) C. 2.3 mL
lots of math, sorry :(
a WBS bone scan film shows a good posterior image, but
the anterior view appears diffuse with greater soft tissue
activity. what is the probable cause?
a. wrong collimator used for anterior
b. increased patient to detector distance on the ant
relative to the post
c. low tagging efficiency of the RP
d. patient was not sufficiently hydrated
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