NMTCB EXAM 1 QUESTIONS WITH ACTUAL
ANSWERS!!
EXAM 1 - ....ANSWER ....✔✔
Sodium Phosphate 32P is used to treat what -
....ANSWER ....✔✔ Polycythemia Vera
-Type of blood CA where bone marrow makes too
many RBC's
Supersaturated Potassium Iodide solution is used for
what PT. therapy radiopharm-AND what is this therapy
for - ....ANSWER ....✔✔ 131 Itositumomab
-Non-Hodgkins Lymphoma: CA starting in lymph system
Vesicouretral Reflux uses what IV method AND what
radiopharm - ....ANSWER ....✔✔ -INDIRECT method
-Tc-99m Pentetate
RED CELL SURVIVAL test is used for patient suspected
with what - ....ANSWER ....✔✔ Hemolytic Anemia
(Cell life span shorter than normal)
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Normal Plasma volume range - ....ANSWER ....✔✔ 3-
6L
How is TOTAL BLOOD VOLUME (TBV) calculated -
....ANSWER ....✔✔ TBV= Plasma Vol. / Corrected
plasmascrit
(Corrected plasmascrit: Blood vol. and Cell mass)
Radioactivity from previous NM exam not accounted for
would do what to the plasma volume - ....ANSWER
....✔✔ Falsely decrease plasma volume
In-111 Pentreotide is used for what imaging AND what
should you have in the FOV - ....ANSWER ....✔✔ -
Neuroendocrine tumors
-Head to upper femurs
"Cold" Pyrophosphate for RBC labeling uses what
injection method - ....ANSWER ....✔✔ in vivo AND
modified in vivo
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How do you calculate RF - ....ANSWER ....✔✔ RF=
Distance from origin of Radiochemical component /
Distance to solvent front
RF= 0cm (remained @origin) / 8.5 cm = 0
RF= origin / distance
What radiopharm is used to label RBC's - ....ANSWER
....✔✔ Tc-99m pertechnetate
What radiopharm is used to label WBC's - ....ANSWER
....✔✔ Exametazime
What is one substance not used for WBC labeling -
....ANSWER ....✔✔ Methylene blue stabilizer
Dosage percentage cannot differ more than what
percentage - ....ANSWER ....✔✔ 20%
Labeling RBC's with RADIOCHROMIUM, the order of
components added to the vial containing ACD solution is:
- ....ANSWER ....✔✔ 1. Patent blood
2. Radiochromium
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3. Ascorbic Acid
Imaging rooms should be posted with what sign -
....ANSWER ....✔✔ "Caution: Radioactive Materials"
Measured activity for dose calibrators should be + or -
what percentage - ....ANSWER ....✔✔ 10%
-Correction factor is used to determine true activities if
percentages are off
How often should dose calibrator LINEARITY testing be
performed - ....ANSWER ....✔✔ QUARTERLY
What type of studies is TEMPORAL SMOOTHING good
for - ....ANSWER ....✔✔ -Dynamic and Gated studies
-NOT FOR STATIC OR NONGATED
Temporal Smoothing is a three-dimensional digital filter
that smooths data
A daily UNIFORMITY flood for a scintillation camera
should contain a minimum of how many counts -
....ANSWER ....✔✔ 3-5 million