Nuclear Medicine Section
The following are True/False questions:
1. 1996
Ventriculography for a R to L shunt
1. use Tc99-MAA
2. external jugular injection is superior to antecubital injection
3. can use in vivo labeling is acceptable
4. ignores bronchial artery perfusion
5. put a region of interest over the lung.
2. 1996
In a pt given Captopril:
1. increase in renin
2. increase in sodium absorption
3. increase in potassium absorption
4. increase in angiotensin 2
5. increase in aldosterone
3. 1996
Concerning CCK
1. administering CCK can decrease the number of false positive results
2. should not be given following administration of morphine
3. should be given to pt on TPN
4. should be give as a rapid IV bolus
4. 1995
Regarding technetium-99m-labeling of red blood cells:
1. in order to do in vivo labeling, 0.5-1.0 mg of stannous ion is injected intravenously
2. ???
5. 1992
Regarding persantine stress thallium:
3. direct dilatory effect on the coronary arteries
4. dilatation is reversed by aminophylline
5. chest pain indicates ischemia
6. its IV half-life is longer than that of adenosine
6. 1995
Regarding technetium-99m-Sestamibi cardiac imaging:
7. the first pass uptake is less than that of thallium-201
8. Sestamibi typically rapidly redistributes within the myocardium
9. the uptake in the myocardium is by passive diffusion
another question here???
6a. 1995
Regarding thallium-201 myocardial imaging:
10. thallium-201 myocardial imaging uses a low energy high sensitivity collimator
11. uses a 256 x 256 matrix for imaging
12. patients are imaged with their left arm above the head
13. the detectors move from a right anterior oblique position to a left posterolateral position
14. 36 stations are used with 20 to 40 second intervals at each stations
7. 1995
Gallium-67 is preferred to Indium-111 for the following:
15. acute osteomyelitis
16. vertebral osteomyelitis
17. suspected pulmonary inflammation
18. fever of unknown origin
19. intraabdominal abscess
8. 1995
Regarding nuclear medicine ventriculography:
20. the paradox image is obtained by subtracting the end-diastolic frame from the end-systolic frame
21. the normal image is obtained by subtracting the end-systolic frame from the end-diastolic frame
22. both paradoxical and normal imaging are performed in the anterior projection
23. the atria and ventricles are out of phase by 90 degrees
24. images are obtained in 32 separate segments of equal time with cycling through the segments based on the position in the cardiac cycle
9. 1995
Regarding radionuclide myocardial imaging:
25. thallium stress imaging is more sensitive for detecting disease of the LAD artery than exercise EKG
26. thallium stress imaging is sensitive for detecting myocardial ischemia when an EKG is uninterpretable secondary to arrhythmia
27. thallium stress imaging is sensitive for detecting ischemia in regions of abnormal wall motion
28. stress thallium is more sensitive for mapping regions of ischemia than exercise EKG demonstrating 2-3 mm of ST depression
29. another one
10. 1995
Regarding technetium-99m MDP radionuclide bone scan:
30. the agent localizes to bone in 3 hours
31. the agent causes temporary cessation in bone metabolic activity (growth???)
32. MDP chemiabsorbs to osteoclasts
33. ???
11. 1995, 1991, 1988
Regarding gastric emptying examination by nuclear medicine:
34. 300 mCi of Tc-99m-SC in 30 cc water
35. fluids show linear emptying curve (95)
36. there is exponential emptying with solids (95)
37. demonstrate 50% emptying at 30 minutes for fluids in a normal study (95)
38. lipids will increase rate of emptying (95)
12. 1995
Contraindications to the administration of morphine during a DISIDA scan include:
39. pancreatitis
40. visualization of activity in the small bowel
41. dilated common bile duct
42. gallbladder filling
43. chronic cholecystitis
13. 1995, 1994
The dose of I-131 for hyperthyroidism needs to be increased in which of the following:
44. patient is on PTUracil
45. patient is on beta blockers
46. toxic multinodular goiter
47. previous radiation to the neck
48. large gland size
49. cardiac disease exacerbated by hyperthyroidism
14. 1993, 1991
Concerning radionuclide imaging of the thyroid:
50. Iodine 125 is helpful in imaging substernal thyroid
51. photopeaks of technetium and Iodine 123 are approximately similar
52. Iodine 123 obviates the problem of discordant nodules
53. the dose to the thyroid is lowest with Iodine 123
54. the dose per mCi of Iodine 131 is approximately 1.5 rads
55. a cold lesion in a child is more likely to be malignant than in an adult
15. 1993
Regarding Thallium-201 imaging:
56. intracellular distribution
57. First pass extraction equal to 50%
58. Flow rate must differ by 2 to 1 to be positive
59. The energy of the imaged photons are 65 to 80 keV
60. with exercise there is increased activity in the liver which can obscure the left heart border
16. 1993
Which of the following items can be used to evaluate uniformity in nuclear medicine Gamma cameras?
61. Cobalt 57
62. Cobalt 60
63. Technetium 99m and bar phantom
64. point source of technetium 99m
65. Cesium 137
17. 1993
Concerning the radionuclide evaluation of CSF leak:
66. pledget activity greater than 1.5x plasma activity indicates leak
67. imaging should begin 6-12 hours after lumbar injection
68. agent of choice is Tc-99m DTPA
69. patient should be positioned supine for imaging
18. 1992
Regarding V/Q scans:
70. high probability scan in a patient with prior PE is less likely to be PE than a high probability scan in a patient who has never had a PE
71. greater than half of patients with PE have a high probability scan
72. Xe-127 can be used after Tc-99m perfusion scan
73. intermediate probability scan is not useful
74. the probability of PE does not depend on clinical suspicion in a patient with a low probability scan
19. 1992
In a patient with a segmental CXR abnormality:
75. V/Q can still be useful to rule out a PE
20. 1992
A LEAP collimator:
76. is more sensitive to lateral decentering
77. pinhole is more sensitive
78. is designed to operate similar to an I-131 collimator
21. 1992, 1988
Regarding Gallium-67 imaging in a patient with AIDS:
79. is more sensitive than CXR for opportunistic infection of the lungs
80. reverts to normal after 5 days of therapy for PCP
81. uptake in hila is suggestive of PCP
82. uptake in the abdominal nodes is specific for MAI
22. 1992
Regarding thin layer chromatography for Tc-99m-MAA preparation:
83. sterile saline is the solvent of choice
84. Tc-99m-MAA must first be hydrolyzed
85. Tc-99m-MAA moves with the solvent front
86. free technetium stays at the origin
87. USP limit activity of free technetium to 20%
23. 1992
True statements regarding the use of bone scan in patients with malignancy include:
88. it should be performed only in symptomatic individuals with prostate cancer
89. it is more sensitive than plain X-ray to detect metastases in patients with renal cell cancer
90. prostate metastases rarely display decreased activity
91. it does not change prognosis in non small cell cancer of the lung
92. flare effect in patients with breast cancer indicates progression of the
disease
24. 1994
Regarding I-131 total body imaging:
93. limited to 3-5 mCi because of total body dose
94. evaluation of abdominal metastases is limited because of GI uptake
95. is rarely performed beyond 24 hours
96. patient must be off T
4 for one or two weeks97. has a high sensitivity for detection of well differentiated medullary carcinoma
25. 1993
Gamma camera resolution is improved by:
103. increased hole diameter of the collimator
104. thinner septae
105. pinhole collimator
106. increased collimator length
26. 1996,1993
Concerning Alzheimer’s disease and nuclear medicine scintigraphy:
107. findings do not correlate with clinical findings
108. can mimic multiinfarct dementia
109. has preference for frontal and temporal lobes
110. has preference for the sensory motor strip
27. 1994
Regarding V/Q examination:
111. low probability cannot be given in a patient with diffuse alveolar infiltrates
112. high probability study cannot be given in a patient with COPD involving >50% of the lung
113. 25% of patients with COPD have a fissure sign
114. stripe sign is seen with pleural effusion
28. 1994
Possible causes of increased activity in the kidney region on bone imaging include:
115. neuroblastoma
116. Wilms tumor
117. radiation therapy
118. chemotherapy
119. antibiotic therapy
29. 1994, 1988
Which of the following are reasons for using technetium pertechnetate for thyroid scanning?
120. patient on PTU
121. exam needs to be completed in two hours
122. patient unable to take oral medications
123. previous evaluation demonstrates hot nodule on pertechnetate examination
124. evaluation of uptake for I-131 therapy for hyperthyroidism
30. 1991, 1988
Regarding reflux studies:
125. anterior views are more sensitive than posterior views
126. should be done 2 hours after ingestion
127. sulfur colloid or indium should be used
128. the patient drinks in an erect position and is scanned while supine or prone
31. 1991
129. True or False: a hot cranial suture on bone scan which is normal on plain film represents benign disease.
32. 1991
130. True or False: Krypton-81m is best for COPD
33. 1991
Using Tc-99m-DTPA for a V/Q scan:
131. about 90% of DTPA comes out in the sputum
132. must collect urine for 6 hours and give it to the radiation safety officer
133. nurses can only have 15 minutes contact every 6 hours
134. the patient must remain 12 feet away from other patients
135. may be done in a positive pressure room
34. 1994
Gallium can be used in the chest to detect:
136. lymphoma
137. nocardia
138. Kaposi sarcoma
139. TB
140. PCP
35. 1994, 1992
Which of the following are causes of falsely low EF on radionuclide cine angio (MUGA scan):
141. 30% asymmetric energy window (technetium peak)
142. incorrect background subtraction
143. systolic region of interest is too small
144. overlap of left atrium and left ventricle
145. impaired diastolic function
36. 1994
Advantages of SPECT thallium over planar imaging are:
146. faster imaging time
147. more sensitive for ischemic changes
148. better detection of specific vessel disease
149. increased specificity
150. increased sensitivity for subendocardial infarction
37. 1996,1994
Regarding the evaluation of hemangioma with technetium labeled RBCs.
151. detection of lesion > 2 cm on SPECT imaging is nearly 100%
152. evaluation more than four hours after injection increases the false negative rate
153. increased flow in early imaging is essential for diagnosis
154. in vivo labeling significantly decreases sensitivity
38. 1994
Regarding thallium and technetium substance cardiac imaging:
155. there is a higher extraction fraction with thallium than with sestamibi
156. there is greater cardiac activity with thallium than with sestamibi
157. time to imaging is less important with sestamibi than with thallium
158. sestamibi does not redistribute
39. 1992
Regarding MUGA:
159. atrial fibrillation degrades the quality of the scan
160. first pass study is more accurate for RVEF than conventional MUGA
161. inappropriately small systolic ROI causes artifactually low EF
40. 1993
Regarding PET and SPECT:
162. PET uses nuclides that have longer half-life
163. imaging in longitudinal plane for SPECT
164. axis of rotation more important for SPECT
165. imaging in axial plane in PET
41. 1988
Which of the following are checked daily as part of quality assurance?
172. linearity
173. accuracy
174. constancy
175. geometric efficiency
42. 1988
Regarding the thallium-technetium subtraction technique; a focus of activity could represent:
176. parathyroid adenoma
177. thyroid nodule
43. 1989, 1988
On a thallium-201 treadmill test, the patient is unable to reach maximum exercise secondary to leg pain. Thallium-201 gives a reversing lesion in the septum. Which of the following are true?
178. only angina or ST segment depression should stop the test
179. leg pain is an OK reason to stop the test
180. the results are definitely normal
181. the results are definitely abnormal
182. the patient should repeat the test with dipyridamole
183. the patient should have cardiac catherization
44. 1989, 1988
A 71-year-old man has a MUGA test. His resting ejection fraction is 52%. With exercise his ejection fraction is 51%. Which of the following are true?
184. the resting EF is normal
185. the exercise EF is normal
186. the decrease of EF in exercise is expected
187. normal resting EF should be at least 55%
Nuclear Medicine
Select the single best answer
45. 1996
A women is 2 days status post thyroidectomy for papillary carcinoma. What can she expect next:
1. XRT of the neck as soon as her surgical bed heals
2. treatment with I 131 approximately 6 weeks later
3. start with 0.3mg of levothyroxine
4. ???
5. check calcium levels
46. 1996
Which of the following CANNOT be used for parathyroid imaging?
1. Thallium and pertechnetate
2. I131 and pertechnetate
3. Tc99-sestamibi , acute and delayed imaging
4. Tc99-sestamibi and Tc99 pertechnetate
5. I131 and Thallium
47. 1993
Concerning Iodine-131 therapy for postoperative treatment of thyroid carcinoma. The appropriate dose for treating lymph node metastases is:
a. 15-30 mCi
b. 25-50 mCi
c. 100-200 mCi
d. 250-500 mCi
e. 500 mCi and above
48. 1995
Regarding technetium-99m-labeled red blood cells, technetium pertechnetate binds to which of the following sites?
a. alpha chain of hemoglobin molecule
b. beta chain of hemoglobin molecule
c. red cell membrane
d. iron component of the hemoglobin
49. 1995, 1989, 1988
Regarding technetium-99m sulfur colloid for detection of GI bleed:
a. has greater sensitivity than angiography
b. is best for upper GI bleeds
c. is good for detecting intermittent bleeds
d. requires labeling of red blood cells
50. 1995v, 1992, 1989
The most likely condition to show cold nodules on technetium-99m sulfur colloid liver-spleen scan in a 40 y/o female:
a. FNH
b. metastatic colon cancer
c. metastatic breast cancer
d. adenoma
e. Budd-Chiari
f. contamination by alumina
51. 1995
Which of the following agents can be used to treat diffuse bony metastases?
a. P-32
b. Strontium-90
c. Strontium-89
d. Strontium-85m
52. 1995
Regarding evaluation of brain death with nuclear scintigraphy:
a. barbituate intoxication invalidates the results
b. it has no role in the determination of brain death
c. a "hot nose" sign is diagnostic of brain death
d. delayed activity in the brain following Tc-99m-HMPAO administration is suggestive of the diagnosis
e. ???
53. 1995
Regarding the "stripe sign" in ventilation-perfusion imaging of the lungs:
a. indicates a peripheral perfusion defect
b. cannot be interpreted in the presence of small bilateral pleural effusions
c. commonly seen in patients with COPD
d. indicates evidence of perfusion in the periphery of the pleura
54. 1995
Concerning radionuclide ventriculography evaluation of a left-to-right shunt, which of the following is false?
a. accurately determines the hematologic size of the shunt
b. accurately determines the anatomic size of the shunt
c. can determine the magnitude of pulmonic stenosis
d. examination is suboptimal if a high bolus is not given
e. the uptake in the lungs is useful information for evaluation
55. 1995
A 30 y/o woman who is otherwise healthy presents with a 1 day history of shortness of breath and chest pain. Chest radiograph and EKG are normal. Ventilation-perfusion scan reveals 5 small peripheral segmental perfusion defects with a normal ventilation component. Which of the following is most appropriate?
a. perform emergent pulmonary angiography
b. admit the patient and schedule elective pulmonary angiography on the following day
c. begin the patient on anticoagulant medication with no further studies needed
d. repeat the ventilation-perfusion scan in 48 hours
e. no need for further imaging, do not begin patient on anticoagulant medication
56. 1995
Regulations state that the dose calibrator is required to measure radionuclide doses with the maximum error being +/-____%?
a. 5
b. 10
c. 20
d. 25
e. 50
57. 1995, 1992
Which of the following is least likely to cause uptake in the liver on Tc-99m-MDP bone scan?
a. metastatic colon cancer (92)
b. contamination of the agent with aluminum (92)
c. osteosarcoma metastasis (92, 95)
d. metastatic breast cancer (92, 95)
e. contamination of the mixing vial by air (92)
f. focal nodular hyperplasia (95)
h. hepatitis (95)
58. 1995
A single lesion within the right lobe of the liver is initially cold on technetium-99m RBC imaging. It shows slow increase in intensity with centripetal fill in. Which of the following is the most likely diagnosis?
a. metastasis
b. hemangioma
c. focal nodular hyperplasia
d. adenoma
e. hepatocellular carcinoma
59. 1995
Which of the following is not a cause of diffuse uptake of technetium-99m MDP in the bones with no appreciable uptake in the kidneys?
a. hyperparathyroidism
b. aggressive osteoporosis
c. diffuse osteoblastic bony metastases
d. hyperthyroidism
e. chronic renal disease
60. 1995, 1992
What would be the expected finding in a captopril renal scan in a patient with right renal artery stenosis?
a. delayed, decreased uptake in the right kidney
b. increased uptake in the right kidney
c. equal activity bilaterally
d. no uptake in the right kidney
e. early uptake in the right kidney
61. 1993
All of the following are true except.
Indium labeled white blood cell scan in osteomyelitis:
a. useful for following antibiotic treated osteomyelitis
b. useful for detecting spinal osteomyelitis
c. useful for detecting acute superimposed on chronic osteomyelitis
d. useful for detecting osteomyelitis in a fracture
e. useful for detecting osteomyelitis in sickle cell anemia
62. 1993
Which of the following is least likely to produce renal uptake on Technetium MDP bone scan?
a. chemotherapy
b. nephrocalcinosis
c. dehydration
d. radiation therapy
e. aluminum contamination
63. 1993, 1989
A rim sign and non-visualization of the gallbladder after 4 hours on a DISIDA scan is associated with:
a. acalculus cholecystitis
b. gangrenous cholecystitis
c. hepatic abscesses
d missed torsion
64. 1992
Small matched V/Q defects makes the likelihood of PE:
a. <1%
b. 5-10%
c. 50%
d. 60-80%
e. >90%
65. 1992
Regarding "shin splints" on bone scan:
a. normal
b. hot first and second phases, normal third
c. hot first and second phases, fades on third
d. normal first and second phases, hot on third
e. hot on all three phases.
66. 1996, 1994, 1993, 1992, 1991
MIBG cannot be used to scan:
a. neuroblastoma
b. medullary carcinoma of the thyroid
c. pheochromocytoma
d. adrenal aldosteronoma
e. paraganglioma
67. 1994, 1992, 1989
After 45 minutes in a DISIDA scan, activity is present in the liver, biliary tree, and bowel. The next step should be:
a. morphine
b. fatty meal
c. reinject DISIDA and scan for 4 hours
d. inject Tc-sulfur colloid and scan
e. nothing - diagnosis of acute cholecystitis is made
f. treatment with Cholecystokinin and further evaluation
68. 1996, 1994, 1992
A 40 y/o woman with a family history of thyroid disease has had a sore throat, neck pain, tremulousness, and restlessness for 4 weeks. Her T
3 and T4 are both elevated. She undergoes I-123 scan 8 weeks after a contrast-enhanced CT study. Her uptake is <1%. She has:a. Graves disease
b. Hashimoto thyroiditis
c. subacute thyroiditis (also called Dequervain thyroiditis)
d. acute suppurative thyroiditis
e. thyroiodine intoxication
69. 1992
In a V/Q scan with matched V and Q defects and the same sized defect on CXR, what is the probability of PE?
a. very low probability
b. low probability
c. intermediate probability
d. high probability
70. 1994
Increased uptake on Gallium-67 imaging is least likely to be seen in an AIDS patient with which one of the following diseases?
a. Nocardia
b. PCP
c. Cryptococcus
d. CMV
e. Lymphoma
71. 1996,1994, 1989
A woman is 7 months pregnant, has a history of breast carcinoma, and has new onset right hip pain. Tc-99m-MDP bone scan should:
a. not be performed because of the uptake of Tc-99m by the fetus
b. not be performed because the Tc-99m interferes with therapy
c. not be performed because the patient is known to have breast carcinoma so the examination is therefore unnecessary.
d. be performed
72. 1993
Which of the following is the best test to determine the response of chronic osteomyelitis to antibiotics?
a. Indium-111 WBC scan
b. Gallium-67 scan
c. Tc-99m MDP scan
d. sulfur colloid scan
73. 1991
The probability of PE in a scan in which a few small scattered subsegmental mismatches are seen is:
a. low
b. intermediate
c. moderately high
d. high
74. 1994
In a cirrhotic patient being evaluated, colloid shift of colloid on liver-spleen scan is due to:
a. portal hypertension
b. hepatocellular dysfunction
c. varices
d. intrahepatic shunting
e. altered or activation of the extrahepatic RES function
75. 1994
In a bone scan with diffuse increased activity in the bones and decreased activity in the kidneys as well as increased activity in the stomach and lungs. What is the most likely cause.
a. chronic renal failure with renal osteodystrophy
b. metastatic disease
c. breast carcinoma with hypocalcemia
d. mucinous producing carcinoma
e. hyperthyroidism with free Technetium
76. 1994
What is the probability of PE in a patient who has a normal CXR with one large and one moderate defect on perfusion and a normal ventilation component?
a. low probability
b. intermediate probability
c. high probability
d. indeterminate
77. 1994
In a patient who is being evaluated with In-111-labeled WBCs that were damaged during the labeling process, where would increased activity be noted?
a. lung
b. salivary glands
c. kidneys
d. liver
e. bone marrow
78. 1994
A patient who had an MI three years ago is shown to have an 80% stenosis on cardiac catheterization. Heart examination with radioactivity labeled ammonia shows decreased activity and evaluation with F18-labeled FDG shows increased activity. The most likely cause is:
a. scar
b. infarct
c. ischemia and scar
d. stunned myocardium
e. hibernating myocardium
79. 1994
Persistently increasing activity on a MAG 3 curve would not be seen in which one of the following diseases?
a. ATN
b. cyclosporin toxicity
c. pyelonephritis
d. obstruction
e. renal artery stenosis following captopril administration
80. 1996,1994, 1988
Photopeak testing and saline chromatography:
a. pyrogen testing
b. detection of breakthrough molybdenum
c. sterility testing
d. detection of aluminum contamination
81. 1992, 1989v
The best time to image a myocardial infarct with Tc-99m-pyrophosphate is:
a. <12 hours
b. 12-24 hours
c. 1-3 days
d. 5-7 days
e. > 8 days
82. 1993
The best indicator of prognosis at 8 hours status post myocardial infarction is:
a. negative pyrophosphate scan
b. positive pyrophosphate scan
c. positive antimyosin scan (technetium actin-myosin??)
d. ejection fraction of 25% on MUGA scan
e. increased uptake in the lung on thallium scan
83. 1993
In a child with missed torsion of the testicle, the nuclear medicine finding is:
a. cut-off sign
b. photopenic defect
c. normal
d. hyperemic
e. donut sign
84. 1993
A patient receives 5000 rads to the L3 vertebral body over 4 weeks. Which of the following radionuclide uptake patterns is seen on a bone scan 6 months later?
a. increased activity in the entire lumbar spine
b. increased activity at L3
c. decreased activity at L3
d. decreased activity in the entire lumbar spine
85. 1989
What is the appearance of torsion of the appendix of the testicle on technetium-99m pertechnetate imaging?
a. hyperemic
b. donut sign
c. cut off sign
d. normal
86. 1993 c PreTest
Diffuse pulmonary activity is noted during a sulfur-colloid scan. Which of the following is the least likely cause?
a. patient on estrogen therapy
b. sarcoid
c. cirrhosis
d. widespread pulmonary metastases
e. collagen vascular disease
Nuclear Medicine Questions
The following are matching questions:
87. 1996
a. molybdenum breakthrough
b. technetium dioxide
c. aluminum breakthrough
d. sterility
e. pyrogenicity
1. photopeak
2. saline chromatography
88. 1996
a. high probability
b. intermediate prob
c. indeterminant
d. low probability
1. four moderate ventilation perfusion mismatches with a normal CXR
2. There is <50% V/Q match in one lung and less than 75% V/Q match in the other lung. The CXR is normal or nearly normal.
3. small V/Q mismatch which is significantly smaller than the lesion seen on CXR
89. 1996
Select the appropriate collimator
a. low energy, general all purpose
b. high energy , general all purpose
c. medium energy, general all purpose
d. high resolution, general all purpose
e. high sensitivity, general all purpose
1. I131 whole body imaging
2. Gallium whole body imaging
3. Tc99-DTPA renal scintigraphy
90.
Matching
a. decreased uptake temporoparietal region
b. subcortical decreased uptake
1. multiinfarct dementia
2. Alzheimers
91. 1995
1. associated with other endocrine abnormalities
2. when diffusely metastatic, most likely to respond to I-131 therapy
a. medullary carcinoma of the thyroid
b. papillary carcinoma of the thyroid
c. follicular carcinoma of the thyroid
d. anaplastic carcinoma of the thyroid
92. 1994, 1993
Concerning Technetium-99m pertechnetate red blood cell radionuclide preparation:
3. Stannous chloride
4. EDTA
5. Technetium dioxide
6. dilithium crystals
a. binds excess alumina
b. an insoluble impurity
c. reducing agent
d. reactive species of technetium
e. most effective in matter-antimatter propulsion
93. 1994, 1988
Match the method of uptake:
7. Indium-111 WBCs
8. Tc-99m-HIDA
9. labeled red blood cells for a spleen scan
10. Gallium-67 citrate
11. Tc-99m MDP
a. Phagocytosis
b. active transport
c. passive transport (diffusion)
d. metabolized
e. sequestration
f. chemabsorption
94. 1992, 1991
12. MAG 3
13. DMSA
14. DTPA
15. orthoiodohippuran
a. filtration only
b. binds to -SH groups
c. cortex + medulla
d. activity used to measure effective renal plasma flow
95. 1996,1994, 1992
16. osteoblastoma
17. fibrous cortical defect
18. neuroblastoma
a. normal bone scan
b. hot on third phase only
c. mixed hot and cold lesions
d. hot on all three phases
96. 1992
Match the dose critical organ with the agent:
19. In-111 WBC
20. Tl-201
a. spleen
b. heart
c. colon
d. kidneys
e. bladder
97. 1994, 1992
21. diaphragmatic creep
22. left bundle branch block
23. breast attenuation
a. reversible septal defect
b. fixed septal defect
c. reversible inferior defect
d. apical thinning
e. fixed lateral wall defect
f. thinning of the LV
g. anterolateral wall defect
98. 1993
24. study performed at rest with 85% occlusion of the LAD
25. 45% occlusion of the LAD after exercise
a. increased thallium perfusion scan
b. decreased thallium perfusion scan
c. normal study
99. 1991
26. Pentagastrin
27. DISIDA
a. Meckel diverticulum
b. Phenobarbital
100. 1991
Regarding GFR vs. ERPF (effective renal plasma flow), which is more affected in:
28. ureteral obstruction
29. ATN
30. renal artery stenosis
101. 1989
Matching regarding imaging with I-123:
31. autonomous adenoma
32. papillary cell carcinoma
33. follicular cell carcinoma
34. discordant nodule
35. non-toxic multinodular goiter
a. cold nodule
b. hot nodule
c. both hot and cold nodules
102. 1994
36. Acute ureteral obstruction
37. column of Bertin
a. technetium
b. DTPA, optional treatment with Lasix
c. DMSA
d. MAG 3
e. DTPA with captopril
103. 1993, 1989
38. Iodine 131 Hippuran
39. DMSA Technetium
40. Technetium DTPA
a. binds to sulfhydryl groups
b. glomerular filtration
c. tubular secretion
d. tubular filtration
104. 1993
Match the radionuclide with its source:
41. beta-emitters
42. radionuclide disturbed when chemically separated
43. half-life too long for nuclear medicine
a. cyclotron
b. generator
c. nuclear reactor
d. mining
105. 1993
Match the half-life
44. carbon 11
45. Tc-99m
46. I-131
47. Tl-201
a. 20 minutes
b. 6 hours
c. 72 hours
d. 8 days
*