NMTCB Sample Exam Questions With 100% Correct Answers 2024, Exams of Advanced Education

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NMTCB Sample Exam Questions With

100% Correct Answers 2024

What is being evaluated with chromatography testing of technetium radiopharmaceuticals A. Aluminum Contamination B. Molybdenum Breakthrough C. Radionuclidic Purity D. Radiochemical Purity E. Chemical Purity - Correct Answer-D. Radiochemical Purity The use of elliptical and or body counter orbits in SPECT imaging should result in improved A. Temporal Resolution B. Spatial Resolution C. Reconstruction Times D. Acquisition Times E. Patient Comfort - Correct Answer-B. Spatial Resolution Which of the following variables does not affect spatial resolution in nuclear medicine imaging systems

A. Physical Design of the collimator B. Material of which the collimator is constructed C. Energy of the gamma rays being counted D. Computer matrix pixel size E. Byte vs word acquisition mode - Correct Answer-E. Byte vs word acquisition mode Full Width at Half Maximum (FWHM) is often used as a measure of A. Uniformity B. Sensitivity C. Intensity D. Resolution E. Deadtime - Correct Answer-D. Resolution Uncorrected field flood non uniformities cause ______ artifacts in tomographic reconstruction A. Irregular B. Dropout C. Circular D. Undulating

E. Linear - Correct Answer-C. Circular How many 16 bit words of memory are required for a 64 by 64 byte mode image A. 2048 B. 4096 C. 16, D. 32, E. 65,535 - Correct Answer-A. 2048 What are areas of prolonged retention of Xe133 in the lungs associated with A. Reduced trapping in the lung B. Obstructive Lung Disease C. Pulmonary Embolism D. Bacterial Pneumonia E. Septal Penetration - Correct Answer-B. Obstructive Lung Disease A patient is to undergo a multiple gated cardiac blood pool study with the heart cycle divided into 20 frames. The patient

is in normal sinus rhythm and has a heart rate of 68 bpm. The computer should lock in at what time per frame for this study A. 44 milliseconds B. 56 milliseconds C. .29 seconds D. 1.5seconds E. 3.4 seconds - Correct Answer-A. 44milliseconds Which of the following myocardial perfusion patterns suggest that the patient has myocardial ischemia A. Abnormal resting TcMIBI , Abnormal Stress Tc MIBI B. Abnormal resting Tc MIBI , Normal Stress Tl 201 C. Normal resting Tc MIBI, Normal Stress Tl 201 D. Abnormal resting Tl 201, Abnormal Stress Tc MIBI E. Normal Resting Tl201, Abnormal Stress Tl 201 - Correct Answer-E. Normal Resting Tl 201, Abnormal Stress Tl 201 Ventricular depolarization occurs just before the ventricles contract, expelling blood forward into the pulmonary artery and aorta. What represents this action on the EKG strip A. QA complex

B. ST complex C. QRS complex D. RS complex E. PQR complex - Correct Answer-C. QRS complex At what distance is the exposure rate (in mR/hr) indicated by a packages transport index measured? A. At the surface B. At 1 meter from the surface C. At 3 meters from surface D. At 6 meters from surface E. TI has nothing to do with exposure - Correct Answer-B. At 1 meter from the surface According to the NRC, an unrestricted area is one in which a person would receive a radiation dose of less than A. 2mRem/hr B. 5 mRem/hr C. 10 mRem/hr D. 20 mRem/hr E. 50 mRem/hr - Correct Answer-B. 2mRem/hr

*The dose rate during predation of a radiopharmaceutical is 1.66 mrem/hr. With this rate reduced by 2HVLs how many hours would it take a worker to accumulate 10mRems A. 3 B. 6 C. 12 D. 24 E. 48 - Correct Answer-D. 24 In a euthyroid patient which of the following describes the result of Cytomel (T3) administration for 8 days prior to radioactive iodine thyroid uptake A. Elevated protein bound iodine B. Suppressed "cold" nodules C. Increased thyroid uptake D. Decreased thyroid uptake E. No variation in uptake - Correct Answer-D. Decreased thyroid uptake

A well counter is set to collect 10,000 counts or to stop after 5 minutes. The counter stops at 2 minutes. What is the count rate in (cpm) A. 2000 B. 5000 C. 10, D. 20, E. 200,000 - Correct Answer-B. 5000 If a vial containing Tl 201 is found to have an activity of 10.0mCi at 8 am on Monday how much activity would remain at 10am on Friday provided no dose was drawn from this vial (in mCi) A. 86. B. 4. C. 3. D. 3. E. 2.55 - Correct Answer-C. 3. Elapsed Time 99 hours

e^-.693(99/72) =. 10mCi x .391 = 3. High Radiation Area Signs are to be posted in areas where exposures greater than ______ mRem/hr are measured at 30cm from the source or from any surface through which the radiation penetrates A. 50 B. 10 C. 5 D. 100 E. 500 - Correct Answer-D. 100 When a zoom us used during a 64x64 byte mode computer acquisition A. The computer automatically switches to a larger matrix size B. The field of view is increased C. A spatial filter must be used to smooth away the adverse affects of this technique D. Spatial resolution is increased

E. More computer memory is needed - Correct Answer-D. Spatial Resolution is increased Which of the following quality control tests should be performed on a dose calibrator after a power outage A. Nothing needs to be checked if QC was performed in the last 24 hours B. Constancy C. Linearity D. Geomertry E. Sensitivity - Correct Answer-B. Constancy When processing a gated blood pool study, incorrectly placing the background region over part of the aorta will have what affect of the resulting EF calculation A. The result will be higher than the patients true EF B. The result will be lower than the patients true EF C. It will have no effect; the background in the region of the aorta is insignificant D. It will have no effect; the background data is only used to smooth the resulting volume curve

E. It depends; the effect is different depending on whether the patients heart function is abnormal or normal to begin with - Correct Answer-A. The result will be higher than the patients true EF When labeling leukocytes with In-111 oxide what is the next step in the procedure after blood has been drawn in a syringe containing an anticoagulant A. Centrifuge the sample at 200g for 5 minutes B. Centrifuge the sample at 2000g for 5 minutes C. Sediment the sample for 50 to 60 minutes D. Add the In-111 Oxine E. Add ascorbic acid - Correct Answer-C. Sediment the sample for 50 to 60 minutes The limit for Mo 99 contamination in a solution of Tc99m is no more than - Correct Answer-.15uCi Mo99 per mCi Tc99m What is the most likely cause of activity seen in the liver and spleen during a perfusion lung scan A. Normal bio distribution B. Left to right Cardiac Shunt

C. Dissociation and Oxidation to Free Pertechnetate D. COPD E. MAA particles smaller than 5 microns - Correct Answer-E. MAA particles smaller than 5 microns According to nationally standards how often should the activity linearity of a dose calibrator be measured - Correct Answer-Quarterly Which of the following situations would be considered an absolute contraindication for performing adenosine pharmacologic stress testing A.Patient drank a couple cups of caffeinated coffee 2 hours prior B. Patient ate a solid meal 2 hours prior C. Patient had a colonoscopy 1 week prior D. Patient had a known MI 6 months previously E. SPECT imaging is not available at this site - Correct Answer- A. Patient drank a couple cups of caffeinated coffee 2 hours prior