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NMTCB Review Sample Questions
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NMTCB Review Sample QuestionsIn which radiopharmaceutical is Tc99m left in the valence state of +7? - answer sulfur
colloid
Why would an image of the brain be obtained during a lung perfusion scan using Tc99m
MAA? - answer to detect a right to left shunt
Bone marrow imaging is performed using? - answerTc99m Sulfur Colloid
All of the following have an effect on the concentration of eluate obtained from a wet
generator except:
a) time since last elution
b) volume of saline added to charging port
c) size of collection vial
d) amount of Mo99 activity present on the alumina column – answer b) volume of saline
added to charging port
A Mo99m/Tc99m generator has an elution efficiency of 89%. If 1.1 Ci of Tc99m are
present on the column, what is the estimated activity of eluate that will be obtained? -
answer979 mCi
Tc99m DTPA has been used for all of the following except?
a) aerosol lung scanning
b) renal flow study
c) brain flow study
d) shunt patency
e) spleen scanning - answere) spleen scanning
which of the following is not used as an anticoagulant?
a) heparin
b) EDTA
c) Ascorbic acid
d) ACD solution - answerb) EDTA
If a concentration of a solution desired is 2 uCi/mL and the 325 uCi of solute is
contained in a volume of 2.5 mL, how much water should be added to create the
solution? - answer162.5 mL
A technologist receives a request for a patient to receive Sm 153 for palliation of pain
from bone mets. the patient has a leunocyte count of 3500 and 40000 platelets. What
, should happen next? - answerthe therapy should be delayed until the platelet count is at
least 60,000
A sulfur colloid kit requires the addition of 1-3 mL containing no more than 500 mCi of
Tc99m pertechnetate. 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 maximum concentration of Tc99m? - answer125 mCi/mL
T/F: A Hine-Duley phantom is useful for testing the spatial resolution and spatial
linearity with only one image. - answerfalse
The advantage of a lung ventilation scan performed with Xe-133 is: - answerthe ability
to detect delayed washout
A diphosphate kit contains 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Immediately, a 20 mCi dose is withdrawn for a bone scan.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 a patient arrives late at
9:30, and half the volume is accidently discharged, how much from the kit must not be
added to the syringe to correct the dose to 20 mCi? (decay factor is .841) - answer2.3
ml
A whole body scan film shows a good posterior image, but the anterior view appears
diffuse and with greater soft tissue activity. what is the probable cause? -
answerincreased patient to detector distance on the anterior relative to the posterior
the inferior wall of the heart is supplied by the: - answerright coronary artery (RCA)
the uptake of F18 FDG by tumors is based on: - answerthe higher glycolytic rate of
tumors relative to normal tissue
T/F: In111 delivers a lower radiation dose to the patient than Ga67 because it has only
one gamma emission whereas Ga67 has four. - answerFalse
If dipyridamole is supplied in a 50 ml vial containing 250 mg, and a patient weighs 205
lbs, how much volume will need to be withdrawn from the vial to prepare his dose of
0.56 mg/kg? - answer10.4 ml
If 450 mCi of Tc99m eluted from a generator contains 200 uCi of Mo99, is the eluate
within the standards of radioactive purity set forth by the NRC? - answerno
If SPECT images are taken with 360 degree rotation, 32 stops for 15 sec/stop and a
matrix of 64x64 have significant star artifact, which imaging parameter would be best to
change to correct the image? - answerchange the number of stops to 64
What radiopharmaceutical is best to use for renal scanning if a determination of
effective renal plasma flow is also desired? - answerTc99m MAG3
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