NUCLEAR MEDICINE LATEST 2026 COMPREHENSIVE EXAM
QUESTIONS AND SOLUTIONS GUARANTEE A+
✔✔10. Which of the following image findings is most consistent with chromatography
results of a 99mTc HDP sample demonstrating 85% radiochemical purity? - ✔✔a.
Stomach and thyroid uptake
✔✔11. The results shown below were obtained when 99mTc eluate was assayed for
99Mo breakthrough at 0600, immediately following elution. - ✔✔c. The eluate may be
administered to patients
✔✔12. According to the NRC regulations, which of the following signs should be posted
on the door of a radiopharmacy laboratory in which radiation levels have been
measured to be 12.0 mrem/hr? - ✔✔d. Caution: High Radiation area
✔✔13. Which of the following statements about a patient who receives 75 mCi of Na
131-Iodine is false? - ✔✔b. The patient's spouse may stay in the room continuously
✔✔14. According to federal regulations, which of the following statements is true
regarding receipt of a package containing multiple doses of a 99mTc labeled
radiopharmaceutical at a licensed facility - ✔✔d. External surfaces of the package must
be promptly monitored (within 3 business hours) by the licensee for radioactive
contamination and dose levels prior to opening it.
✔✔15. Calculate the patient's hematocrit from the following red blood cell mass results.
Red Cell Volume = 2658 ml Plasma Volume = 4145 ml - ✔✔d. 64%
✔✔16. According to NRC regulations, external doses in unrestricted areas must be
maintained below: - ✔✔b. 2 mrem in 1 hour at all locations
✔✔17. According to NRC regulations, records of occupational doses must be retained
for how long? - ✔✔e. Indefinitely
✔✔18. A technologist's clothing becomes contaminated with 1311. What should be
done - ✔✔c. Remove the clothing and store it as radioactive until it decays to
background
✔✔19. Which of the following statements concerning positron emission tomography
(PET) is incorrect? - ✔✔a. PET is a superior modality for the assessment of anatomical
changes.
, ✔✔20. If 375 mCi of 99mTc are present on the column of a 99Mo generator and the
generator has an 85% generator efficiency, what is the amount of 99mTc that you could
expect to elute from this generator? - ✔✔b. 319 mCi
✔✔21. Which of the following agents would be used to perform a sphincter of Oddi
study ? - ✔✔c. Morphine and 99mTc disofenin
✔✔22. What is the minimum number of mCi of 99mTc HDP needed at 8am to deliver
three 20 mCi doses that are to be injected at 8:30 am, 10:00 am, and 1:30 pm? (1-hr
decay factor is 0.891 and 30 min decay factor is 0.944). - ✔✔c. 85
✔✔23. Extrinsic uniformity is performed daily on a scintillation camera with a 57 Co
sheet source and a low energy all purpose parallel hole collimator. From the data below,
all of the following may have caused the decreased sensitivity on June 5th except ?
Day Time to Collect 2 million counts
June 1 240 sec
June 2 241 sec
June 3 245 sec
June 4 242 sec
June 5 560 sec - ✔✔e. Incorrect positioning of the point source
✔✔24. The hands of a technologist who will be eluting a 99Mo/99mTc generator daily
should be monitored with: - ✔✔e. thermoluminescent dosimetry ring badge.
✔✔25. In lung imaging with 99mTc MAA, an adverse reaction is less likely to occur in a
patient who has pulmonary hypertension if the technologist: - ✔✔e. decreases the
number of particles to be injected.
✔✔26. Which of the following 99mTc labeled agents is the preferred tracer for
demonstrating intermittent gastrointestinal bleeding? - ✔✔c. red blood cells
✔✔27. ln a Red Blood Cell Sequestration study, the organs to be counted include the: -
✔✔b. heart, liver and spleen
✔✔28. Based on the day's clinic schedule shown below, the technologist should
prepare or order all of the following radiopharmaceuticals except:
Patient Procedure
Patient A renal function study
Patient B total body bone image
Patient C Meckel's diverticulum localization
Patient D hepatobiliary study - ✔✔a. 99mTc macroaggregated albumin
QUESTIONS AND SOLUTIONS GUARANTEE A+
✔✔10. Which of the following image findings is most consistent with chromatography
results of a 99mTc HDP sample demonstrating 85% radiochemical purity? - ✔✔a.
Stomach and thyroid uptake
✔✔11. The results shown below were obtained when 99mTc eluate was assayed for
99Mo breakthrough at 0600, immediately following elution. - ✔✔c. The eluate may be
administered to patients
✔✔12. According to the NRC regulations, which of the following signs should be posted
on the door of a radiopharmacy laboratory in which radiation levels have been
measured to be 12.0 mrem/hr? - ✔✔d. Caution: High Radiation area
✔✔13. Which of the following statements about a patient who receives 75 mCi of Na
131-Iodine is false? - ✔✔b. The patient's spouse may stay in the room continuously
✔✔14. According to federal regulations, which of the following statements is true
regarding receipt of a package containing multiple doses of a 99mTc labeled
radiopharmaceutical at a licensed facility - ✔✔d. External surfaces of the package must
be promptly monitored (within 3 business hours) by the licensee for radioactive
contamination and dose levels prior to opening it.
✔✔15. Calculate the patient's hematocrit from the following red blood cell mass results.
Red Cell Volume = 2658 ml Plasma Volume = 4145 ml - ✔✔d. 64%
✔✔16. According to NRC regulations, external doses in unrestricted areas must be
maintained below: - ✔✔b. 2 mrem in 1 hour at all locations
✔✔17. According to NRC regulations, records of occupational doses must be retained
for how long? - ✔✔e. Indefinitely
✔✔18. A technologist's clothing becomes contaminated with 1311. What should be
done - ✔✔c. Remove the clothing and store it as radioactive until it decays to
background
✔✔19. Which of the following statements concerning positron emission tomography
(PET) is incorrect? - ✔✔a. PET is a superior modality for the assessment of anatomical
changes.
, ✔✔20. If 375 mCi of 99mTc are present on the column of a 99Mo generator and the
generator has an 85% generator efficiency, what is the amount of 99mTc that you could
expect to elute from this generator? - ✔✔b. 319 mCi
✔✔21. Which of the following agents would be used to perform a sphincter of Oddi
study ? - ✔✔c. Morphine and 99mTc disofenin
✔✔22. What is the minimum number of mCi of 99mTc HDP needed at 8am to deliver
three 20 mCi doses that are to be injected at 8:30 am, 10:00 am, and 1:30 pm? (1-hr
decay factor is 0.891 and 30 min decay factor is 0.944). - ✔✔c. 85
✔✔23. Extrinsic uniformity is performed daily on a scintillation camera with a 57 Co
sheet source and a low energy all purpose parallel hole collimator. From the data below,
all of the following may have caused the decreased sensitivity on June 5th except ?
Day Time to Collect 2 million counts
June 1 240 sec
June 2 241 sec
June 3 245 sec
June 4 242 sec
June 5 560 sec - ✔✔e. Incorrect positioning of the point source
✔✔24. The hands of a technologist who will be eluting a 99Mo/99mTc generator daily
should be monitored with: - ✔✔e. thermoluminescent dosimetry ring badge.
✔✔25. In lung imaging with 99mTc MAA, an adverse reaction is less likely to occur in a
patient who has pulmonary hypertension if the technologist: - ✔✔e. decreases the
number of particles to be injected.
✔✔26. Which of the following 99mTc labeled agents is the preferred tracer for
demonstrating intermittent gastrointestinal bleeding? - ✔✔c. red blood cells
✔✔27. ln a Red Blood Cell Sequestration study, the organs to be counted include the: -
✔✔b. heart, liver and spleen
✔✔28. Based on the day's clinic schedule shown below, the technologist should
prepare or order all of the following radiopharmaceuticals except:
Patient Procedure
Patient A renal function study
Patient B total body bone image
Patient C Meckel's diverticulum localization
Patient D hepatobiliary study - ✔✔a. 99mTc macroaggregated albumin
