NMTCB 87 Practice Exam - New book With 100% Correct Answers|23 Pages
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Course
NMTCB
Institution
NMTCB
which will perfuse first following an IV injection of Tc DTPA?
a. lungs
b. left ventricle
c. kidney
d. liver - ️️a. lungs
why would an image of the brain be obtained during a lung perfusion scan using Tc99m MAA?
a. rule out brain mets
b. to detect low tagging efficiency
c. to detect a R...
NMTCB 87 Practice Exam - New book
which will perfuse first following an IV injection of Tc DTPA?
a. lungs
b. left ventricle
c. kidney
d. liver - ✔ ✔ a. lungs
why would an image of the brain be obtained during a lung perfusion scan using Tc99m MAA?
a. rule out brain mets
b. to detect low tagging efficiency
c. to detect a R-L cardiac shunt
d. to see if pulmonary emboli have traveled into the cerebral arteries - ✔ ✔ c. to detect a R-
L cardiac shunt
Xe133 may be used:
a. in rooms that are held at a positive pressure to surrounding areas
b. in patient rooms if they are private
c. in imaging rooms that have a ceiling vent
d. in rooms that are held at a negative pressure to surrounding areas
e. in all of the above as long as oxygen is not in use - ✔ ✔ d. in rooms that are held at a
negative pressure to surrounding areas
A locked storage closet next to the radiopharmacy containing phantoms and sealed sources has
a measured exposure rate of 3 mR/hr. It should be posted with a sign reading:
a. Caution: radioactive materials
b. Caution: radioactive area
c. Caution: high radiation area
,d. Grave danger: very high radiation area
e. no sign necessary - ✔ ✔ A. caution, radioactive materials
a Mo/Tc generator has an elution efficiency of 89%. if 1.1 Ci of Tc is present on the column,
what is the estimated activity of eluate that will be obtained?
a. 97.9 Ci
b. 979 mCi
c. 979 uCi
d. 97.9 mCi - ✔ ✔ b. 979 mCi
a pt with high blood pressure undergoes renography followed by captopril renography, and the
curve of renal uptake from the second exam is lower than the first. What does this mean? The
patient:
a. is rejecting a transplanted kidney
b. has renovascular htn
c. has an obstruction in the collecting system
d. has high blood pressure
e. none of the above - ✔ ✔ b. has renovascular htn
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 - ✔ ✔ B. 125 mCi/ml
max. 1 ml TcO4- containing 500 mCi
, 500/(1.5+1.5+1) = 125 mCi/ml
A sentinel node is:
a. the first draining lymph node from a primary cancer
b. the node containing cancer from which is most distant from the primary tumor site
c. the common iliac node
d. always ipsilateral to the tumor - ✔ ✔ a. the first draining lymph node from a primary
cancer
a SPECT study is required to consist of 2 mil counts. If there are 64 stops and the count rate is
65,000 cpm, how many seconds should each stop last?
a. 13 s
b. 21 s
c. 29 s
d. 31 s
e. 48 s - ✔ ✔ c. 29 s
2 mil cts/ 64 stops = 31,250 cts/stop / 65000 cts/min = 0.48 min/stop x 60 sec/min = 28.5 s
a superscan is the result of:
a. renal insufficiency
b. diffuse skeletal mets
c. chemotherapy response
d. paget's disease
e. none of the above - ✔ ✔ b. diffuse skeletal mets
a tech is preparing an HDP kit at 8a. If the schedule of doses required is as follows and the
eluate available has 7 mCi/ml, what is the minimum vol of TcO4 that should be added?
0900 - Bone scan - 20 mCi
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