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18 Cards in this Set

  • Front
  • Back
1. Radioiodine therapy is given for:
a. hyperthyroidism
b. thyroid cancer
c. Grave's disease
d. all of the above
e. a and b only
d
3. 32 P chromic phosphate is a:
a. clear solution
b. bluish green colloid
c. beta emitter
d. b and c
e. a and c
b
4. Before administration, 89Sr chloride must be assayed in a dose calibrator.
a. true
b. false
b
10. Absorption of vitamin B-12 in the small bowel requires:
a. a flushing dose of B-12
b. intrinsic factor
c. 0,5 mg of 57Co orally
d. 24 hr urine collection
b
12. A patient has a 24 hr dose excretion of 4% on a Stage I Schilling test. A Stage II test is performed and the patient now has a 24 hr excretion of 12%. What is the most likely diagnosis?
a. malabsorption caused by drug therapy
b. parasitic competition
c. pernicious anemia
d. none of the above
c
15. Simultaneous performance of Stage I and Stage II Shilling test uses:
a. IV injection of 57Co labeled B-12 bound to intrinsic factor and oral 58Co labeled B-12
b. oral 57Co labeled B-12 bound to intrinsic factor and oral 58Co labeled B-12
c. IV injection of 57Co labeled B-12 bound to intrinsic factor and oral 60Co labeled B-12
d. oral 57Co labeled B-12 bound to intrinsic factor and oral 60Co lableled B-12
b
18. What is the meaning of polycythemia?
a. an excess of white blood cells
b. an excess of platelets
c. an excess of red blood cells
d. an excess of plasma
c
19. Which of the following measure the amount of red cells in circulating blood?
a. red cell volume
b. hemoglobin
c. hematocrit
d. a and c
e. all of the above
d
22. An empty syringe is used to draw 5ml of blood. After several minutes the blood appears seperated into a liquid and a solid portion. The liquid portion is called:
a. serum
b. plasma
c. anticoagulant
d. none of the above
a
24. A patient should be supine for at least 15 minutes before the start of a plasma volume determination because plasma volume ______ when a patient is standing.
a. increases
b. decreases
b
25. If a dose rate measured at the bedside of a radioiodine therapy patient is 10 mrem/hr, how long may a visitor (who is seated at bedside) stay?
a. 8 min
b. 12 min
c. 20 min
d. 33 min
b
28. According to the Code of Federal Regulations, at what point may a patient who has undergone radioiodine therapy leave the hospital?
a. when another person is unlikely to receive a total effecive dose of 0.5 rem or 5 mSv from exposure to the patient
b. if the remaining dose in the thyroid is less than 33 mCi
c. if the remaining dose in the thyroid is less than 35 mCi
d. if the time spent in the hospital is greater than 4 times the physical half life of the isotope
e. a and b
e
35. The wash method of labeling red blood cells for the determination of red blood cell volume involves repeated centrifugation of the collected sample. The advantage of this technique is that:
a. anticoagulants are unnecessary
b. free chromate ion is removed
c. the use of expensive ascorbic acid is avoided
d. less 51 Cr can be used
b
36. If a technologist mistakenly administers 32 P chromic phosphate intravenously, what is likely to be the result:
a. the urine will be bluish green for about a week
b. severe radiation damage to the liver
c. hypothroidism will occur within one year
d. none of the above
b
38. A survey taken at one meter from a patient who received 35 mCi of 131 I revealed a dose rate of 9 mrem/hr. If the survey made 24 hrs later shows 6.9mrem/hr, what is the remaining dose in the patient, and can he or she be discharged?
a. 27 mCi, yes
b. 27 mCi, no
c. 4.3 mCi, yes
d. 4.3 mCi, no
e. cannot be determined from information given
a
40. Records of dose rate measurements taken immediately after administration of radioiodine to therapy patients must be kept for:
a. 6 mo
b. 1 yr
c. 3 yrs
d. 5 yrs
c
41. After injection of 125 I human serum albumin for determination of plasma volume, it is important to withdraw a small amount of blood into the syringe and re-inject it, to insure that the entire radioactive dose is administered.
a. true
b. false
b
43. Which of the following is used in the treatment of Non-Hodgkin's lymphooma?
a. 82Rb
b. 32P chromic phosphate
c. 90Y ibritumomab tiuxetan
d. 153Sm microspheres
c