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14 Cards in this Set
- Front
- Back
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3. Which of the following radiopharmaceuticals can be used to study the spleen?
a. 51 Cr labeled damaged red blood cells b. 99m Tc labeled damaged red blood cells c. 99m Tc sulfur colloid d. all of the above e. b and c only |
d
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7. While performing a liver scan with sulfur colloid, the technologist notices that lung uptake is present. This is probably due to:
a. free pertechnetate in the sulfur colloid preparation b. too much Al 3+ ion in the pertechnetate that was used for labeling c. lung metastases d. patient being injected in the supine position |
b
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14. Which of the following does not involve the use of labeled RBC's?
a. blood pool imaging of the liver b. GI bleed imaging c. spleen imaging d. Meckel's diverticulum e. both a and d |
d
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15. Cimetidine:
a. prevents the gallbladder from contracting b. prevents the release of pertechnetate from gastric mucosa c. increases uptake of perthchnetate in the gastric mucosa d. decreases peristalsis |
b
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16. The approximate time for half of the activity to empty from the stomach during a solid phase gastric emptying exam is:
a. 25 min b. 40 min c. 90 min d. 180 min |
c
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18. Which imaging study is acquired while an abdominal binder is inflated to increasing pressures?
a. Meckel's diverticulum study b. gastric emptying study c. esophageal transit study d. esophageal reflux study e. gastrointestinal bleeding study |
d
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20. A patient with a bilirubin level of 35 mg/dl is scheduled for hepatobilary imaging. The best radiopharmaceutical to use would be:
a. 99mTc pertechnetate b. 99mTc disofenin c. 99mTc mebrofenin d. 99mTc sulfur colloid e. 99mTc labeled RBC's |
c
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22. A synthetic form of cholecystokinin is:
a. glucagon b. cimetidine c. pentagastrin d. sincalide e. mebrofenin |
d
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24. If the maximum counts obtained from an ROI about the gallbladder are 285,000 and the minimum counts obtained from the same ROI are 187,000 what is the ejection fraction of the gallbladder?
a. 22% b. 34% c. 52% d. 66% e. 73% |
b
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25. Is the ejection fraction in question 24 within the normal range?
a. yes b. no |
b
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28. Morphine given during an hepatobilary scan can:
a. relax the sphincter of Oddi b. enhance gallbladder filling c. shorten study time d. all of the above e. b and c only |
d
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31. Potassium perchlorate should not be administered pediatric patients undergoing scanning for Meckel's diverticulum with 99mTc pertechnetate.
a. true b. false |
a
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33. Why is the labeling efficiency important for imaging of GI bleeding with 99m Tc RBC's?
a. a small decrease in labeling efficiency may lead to a false negative result b. if the patient is actively bleeding, the radiopharmaceutical must be prepared as quickly as possible c. 99m Tc pertechnetate will be taken up by Kupffer cells d. free pertechnetate is secreted by the stomach and the kidneys |
d
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34. When performing a gastric emptying study, it is important to scan the patient in the erect position to promote emptying.
a. true b. false |
b
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