NMTCB PRACTICE EXAMINATION 2026
QUESTIONS WITH ANSWERS GRADED A+
• How often should the COR check be performed?.
Answer: At least weekly
• The abbreviation COR stands for:.
Answer: center of rotation
• What is the minimum number of counts that should be obtained in a
uniformity correction flood for a SPECT camera?.
Answer: 30 million
• What radiopharmaceutical is used to image acute DVT in lower
extremities?.
Answer: Tc99m MAA
• Which of the following collimators will magnify an image?.
Answer: Converging
• Where is Tc99m sestamibi excreted from?.
Answer: Hepatobiliary system
• Which of the following must be performed every 6 months at minimum?.
Answer: Sealed source leak test
• A dose calibrator must undergo repair or replacement if accuracy or
constancy errors are:.
Answer: Greater than 10%
• Accuracy of a dose calibrator must be checked upon installation and then:.
Answer: Annually
• On liver/spleen images, bone marrow uptake is present. What does this
indicate?.
Answer: severe liver dysfunction
• Linearity of a dose calibrator must be checked upon installation and then:.
, Answer: Quarterly
• If there is an obstruction in this part of the hepatobiliary system, the tracer
will be unable to enter the gallbladder..
Answer: cystic duct
• Constancy of a dose calibrator must be tested:.
Answer: Daily
• A technologist wishes to evaluate the intrinsic uniformity of a camera used
for planar imaging and is preparing a dose of 99m Tc. How much activity is
sufficient for the image?.
Answer: 200 uCi
• How long post-administration should imaging begin for Meckel's
Diverticulum?.
Answer: immediately
• The advantages of using a 57Co sheet source over a fluid-filled flood source
with 99mTc added include:.
Answer: It does not have to be prepared each day
• Geometric dependence of a dose calibrator must be checked:.
Answer: At installation
• In renal imaging, which radiotracer should be used when trying to determine
Glomerular Filtration Rate (GFR)?.
Answer: Tc99m DTPA (pentetate)
• What radiotracers can be used for direct radionuclide cystography?.
Answer: Tc99m pertechnetate or Tc99m sulfur colloid
• What are the 3 phases of tracer movement in a normal cerebral flow study?.
Answer: arterial phase, capillary phase, venous phase
• In the arterial phase of a cerebral flow study, normal images will show
activity where?.
Answer: carotid and anterior cerebral arteries
, • In the venous phase of a cerebral flow study, normal images will show
activity where?.
Answer: superior sagittal sinus
• What are the non-BBB penetrating radiopharmaceuticals used for brain
death imaging?.
Answer: Tc99m DTPA or pertechnetate
• What happens to image resolution as the distance between a patient and a
parallel-hole collimator decreases?.
Answer: Increases
• What happens to the image size as the distance between a patient and a
parallel-hole collimator decreases?.
Answer: Does not change
• What part of an imaging system emits light when it has absorbed a photon?.
Answer: Scintillation crystal
• Most of the photons emitted from the radiopharmaceutical which has been
administered to a patient:.
Answer: Do not contribute to the final image
• What are the BBB penetrating radiopharmaceuticals used for brain death
imaging?.
Answer: Tc99m HMPAO (ceretec) or Tc99m ECD (Neurolite)
• To obtain high resolution images of a small organ, gland or joint which
collimator will be most useful?.
Answer: Pinhole
• What is used for radionuclide therapy to relieve bone pain from skeletal
mets?.
Answer: Sr-89 chloride or Sm-153 lexidronam
• For first pass stress/rest cardiac function test, what is the preferred tracer?.
Answer: Tc99m DTPA
• Which instrument should be used to determine the location of a 99m Tc
QUESTIONS WITH ANSWERS GRADED A+
• How often should the COR check be performed?.
Answer: At least weekly
• The abbreviation COR stands for:.
Answer: center of rotation
• What is the minimum number of counts that should be obtained in a
uniformity correction flood for a SPECT camera?.
Answer: 30 million
• What radiopharmaceutical is used to image acute DVT in lower
extremities?.
Answer: Tc99m MAA
• Which of the following collimators will magnify an image?.
Answer: Converging
• Where is Tc99m sestamibi excreted from?.
Answer: Hepatobiliary system
• Which of the following must be performed every 6 months at minimum?.
Answer: Sealed source leak test
• A dose calibrator must undergo repair or replacement if accuracy or
constancy errors are:.
Answer: Greater than 10%
• Accuracy of a dose calibrator must be checked upon installation and then:.
Answer: Annually
• On liver/spleen images, bone marrow uptake is present. What does this
indicate?.
Answer: severe liver dysfunction
• Linearity of a dose calibrator must be checked upon installation and then:.
, Answer: Quarterly
• If there is an obstruction in this part of the hepatobiliary system, the tracer
will be unable to enter the gallbladder..
Answer: cystic duct
• Constancy of a dose calibrator must be tested:.
Answer: Daily
• A technologist wishes to evaluate the intrinsic uniformity of a camera used
for planar imaging and is preparing a dose of 99m Tc. How much activity is
sufficient for the image?.
Answer: 200 uCi
• How long post-administration should imaging begin for Meckel's
Diverticulum?.
Answer: immediately
• The advantages of using a 57Co sheet source over a fluid-filled flood source
with 99mTc added include:.
Answer: It does not have to be prepared each day
• Geometric dependence of a dose calibrator must be checked:.
Answer: At installation
• In renal imaging, which radiotracer should be used when trying to determine
Glomerular Filtration Rate (GFR)?.
Answer: Tc99m DTPA (pentetate)
• What radiotracers can be used for direct radionuclide cystography?.
Answer: Tc99m pertechnetate or Tc99m sulfur colloid
• What are the 3 phases of tracer movement in a normal cerebral flow study?.
Answer: arterial phase, capillary phase, venous phase
• In the arterial phase of a cerebral flow study, normal images will show
activity where?.
Answer: carotid and anterior cerebral arteries
, • In the venous phase of a cerebral flow study, normal images will show
activity where?.
Answer: superior sagittal sinus
• What are the non-BBB penetrating radiopharmaceuticals used for brain
death imaging?.
Answer: Tc99m DTPA or pertechnetate
• What happens to image resolution as the distance between a patient and a
parallel-hole collimator decreases?.
Answer: Increases
• What happens to the image size as the distance between a patient and a
parallel-hole collimator decreases?.
Answer: Does not change
• What part of an imaging system emits light when it has absorbed a photon?.
Answer: Scintillation crystal
• Most of the photons emitted from the radiopharmaceutical which has been
administered to a patient:.
Answer: Do not contribute to the final image
• What are the BBB penetrating radiopharmaceuticals used for brain death
imaging?.
Answer: Tc99m HMPAO (ceretec) or Tc99m ECD (Neurolite)
• To obtain high resolution images of a small organ, gland or joint which
collimator will be most useful?.
Answer: Pinhole
• What is used for radionuclide therapy to relieve bone pain from skeletal
mets?.
Answer: Sr-89 chloride or Sm-153 lexidronam
• For first pass stress/rest cardiac function test, what is the preferred tracer?.
Answer: Tc99m DTPA
• Which instrument should be used to determine the location of a 99m Tc
